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H3K18ac Antibody - ChIP-seq Grade

CUT&Tag grade Abs

ChIP-seq grade Abs

ChIP grade Abs

Negative IgG control

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Antibodies

目录号

格式

价格

C15410139

50 μg

$380.00
Bulk order

其他格式

C15410139-10

10 μg

Polyclonal antibody raised in rabbit against the region of histone H3 containing the acetylated lysine 18 (H3K18ac), using a KLH-conjugated synthetic peptide.

Lot	A1460D
Concentration	0.81 µg/µl
Species reactivity	Human, mouse, wide range expected
Type	Polyclonal
Purity	Affinity purified
Host	Rabbit
Precautions	This product is for research use only. Not for use in diagnostic or therapeutic procedures.

Applications	Suggested dilution	References
ChIP/ChIP-seq ^*	1 μg/IP	Fig 1, 2
CUT&Tag	0.5 µg	Fig 3
ELISA	1:100	Fig 4
Dot Blotting	1:5,000	Fig 5
Western Blotting	1:500	Fig 6
Immunofluorescence	1:200	Fig 7

^* Please note that the optimal antibody amount per ChIP should be determined by the end-user. We recommend testing 0.5-5 μg per IP.

Validation Data

Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac
ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the “iDeal ChIP-seq” kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 μg of antibody per ChIP experiment was analyzed. IgG (2 μg/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis).

A.

B.

C.

D.

Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac
ChIP was performed as described above using 1 μg of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP’d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer’s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively).

A.

B.

Figure 3. Cut&Tag results obtained with the Diagenode antibody directed against H3K18ac
CUT&TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 µg of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).

Figure 4. Determination of the antibody titer
To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300.

Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac
To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure 5 shows a high specificity of the antibody for the modification of interest.

Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac
Western blot was performed on whole cell (25 μg, lane 1) and histone extracts (15 μg, lane 2) from HeLa cells, and on 1 μg of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left.

Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac
HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10’ and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right.
Target Description
Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called “histone code”. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.
证明书
I have extensively used the antibodies against the histone modifications H3K4me3, H3k27me3, H3K9ac, H4k8ac and H3K18ac provided by Diagenode. The high level of specificity and selectivity of these antibodies in mouse brain samples, confirmed by using several negative and positive controls run in parallel with mouse brain tissue samples, ensured successful and reproducible results. I have been a Diagenode costumer for over one year now and I am extremely satisfied with the efficiency of the Bioruptor Pico for chromatin shearing as well as all of the ChIP materials (i.e., antibodies, blocking peptides, primer pairs for qPCR) provided by this company. Many thanks.
Dr. Ermelinda Lomazzo, Institute of Physiological Chemistry, AG Prof. Beat Lutz. University Medical Center of the Johannes Gutenberg University Mainz, Germany

应用

ELISA
Enzyme-linked immunosorbent assay. Read more

DB
Dot blotting Read more

WB
Western blot : The quality of antibodies used in this technique is crucial for correct and specific protein identification. Diagenode offers huge selection of highly sensitive and specific western blot-validated antibodies. Learn more about: Load... Read more

IF
Immunofluorescence: Diagenode offers huge selection of highly sensitive antibodies validated in IF. Immunofluorescence using the Diagenode monoclonal antibody directed against CRISPR/Cas9 HeLa cells transfected with a Cas9 expression vector (... Read more

ChIP-seq (ab)
Read more

ChIP-qPCR (ab)
Read more

CUT&Tag
Read more

出版物

How to properly cite this product in your work

Diagenode strongly recommends using this: H3K18ac Antibody - ChIP-seq Grade (Diagenode Cat# C15410139 Lot# A1460D). Click here to copy to clipboard.

Using our products in your publication? Let us know!

Myc Regulates Chromatin Decompaction and Nuclear Architecture during B Cell Activation
Kieffer-Kwon K.R. et al.
50 years ago, Vincent Allfrey and colleagues discovered that lymphocyte activation triggers massive acetylation of chromatin. However, the molecular mechanisms driving epigenetic accessibility are still unknown. We here show that stimulated lymphocytes decondense chromatin by three differentially regulated steps. Fi...

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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
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<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
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<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
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<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
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<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
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<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
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<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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<td>ChIP/ChIP-seq <sup>*</sup></td>
<td>1 &mu;g/IP</td>
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<td>Fig 7</td>
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<p><small><sup>*</sup> Please note that the optimal antibody amount per ChIP should be determined by the end-user. We recommend testing 0.5-5 &mu;g per IP.</small></p>',
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" /></p>
</div>
<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
</div>
</div>',
		'label2' => 'Target Description',
		'info2' => '<p>Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called &ldquo;histone code&rdquo;. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.</p>',
		'label3' => '',
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		'format' => '50 μg',
		'catalog_number' => 'C15410139',
		'old_catalog_number' => '',
		'sf_code' => 'C15410139-D001-000581',
		'type' => 'FRE',
		'search_order' => '03-Antibody',
		'price_EUR' => '380',
		'price_USD' => '380',
		'price_GBP' => '340',
		'price_JPY' => '59525',
		'price_CNY' => '',
		'price_AUD' => '950',
		'country' => 'ALL',
		'except_countries' => 'None',
		'quote' => false,
		'in_stock' => false,
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		'master' => true,
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		'slug' => 'h3k18ac-polyclonal-antibody-classic-50-mg-62-ml',
		'meta_title' => 'H3K18ac Antibody  - ChIP-seq Grade (C15410139) | Diagenode',
		'meta_keywords' => '',
		'meta_description' => 'H3K18ac (Histone H3 containing the acetylated lysine 18) Polyclonal Antibody validated  in ChIP-seq, ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
		'modified' => '2024-01-16 16:10:23',
		'created' => '2015-06-29 14:08:20',
		'locale' => 'zho'
	),
	'Antibody' => array(
		'host' => '*****',
		'id' => '107',
		'name' => 'H3K18ac polyclonal antibody',
		'description' => 'Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called “histone code”. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.',
		'clonality' => '',
		'isotype' => '',
		'lot' => 'A1460D',
		'concentration' => '0.81 &micro;g/&micro;l',
		'reactivity' => 'Human, mouse, wide range expected',
		'type' => 'Polyclonal',
		'purity' => 'Affinity purified',
		'classification' => 'Classic',
		'application_table' => '<table>
<thead>
<tr>
<th>Applications</th>
<th>Suggested dilution</th>
<th>References</th>
</tr>
</thead>
<tbody>
<tr>
<td>ChIP/ChIP-seq <sup>*</sup></td>
<td>1 &mu;g/IP</td>
<td>Fig 1, 2</td>
</tr>
<tr>
<td>CUT&amp;Tag</td>
<td>0.5 &micro;g</td>
<td>Fig 3</td>
</tr>
<tr>
<td>ELISA</td>
<td>1:100</td>
<td>Fig 4</td>
</tr>
<tr>
<td>Dot Blotting</td>
<td>1:5,000</td>
<td>Fig 5</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:500</td>
<td>Fig 6</td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:200</td>
<td>Fig 7</td>
</tr>
</tbody>
</table>
<p><small><sup>*</sup> Please note that the optimal antibody amount per ChIP should be determined by the end-user. We recommend testing 0.5-5 &mu;g per IP.</small></p>',
		'storage_conditions' => '',
		'storage_buffer' => '',
		'precautions' => 'This product is for research use only. Not for use in diagnostic or therapeutic procedures.',
		'uniprot_acc' => '',
		'slug' => '',
		'meta_keywords' => '',
		'meta_description' => '',
		'modified' => '2022-04-08 12:07:28',
		'created' => '0000-00-00 00:00:00',
		'select_label' => '107 - H3K18ac polyclonal antibody (A1460D - 0.81 &micro;g/&micro;l - Human, mouse, wide range expected - Affinity purified - Rabbit)'
	),
	'Slave' => array(
		(int) 0 => array(
			'id' => '25',
			'name' => 'C15410139',
			'product_id' => '2253',
			'modified' => '2016-02-18 18:05:09',
			'created' => '2016-02-18 18:05:09'
		)
	),
	'Group' => array(
		'Group' => array(
			'id' => '25',
			'name' => 'C15410139',
			'product_id' => '2253',
			'modified' => '2016-02-18 18:05:09',
			'created' => '2016-02-18 18:05:09'
		),
		'Master' => array(
			'id' => '2253',
			'antibody_id' => '107',
			'name' => 'H3K18ac Antibody',
			'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone <strong>H3 containing the acetylated lysine 18 (H3K18ac),</strong> using a KLH-conjugated synthetic peptide.</span></p>',
			'label1' => 'Validation Data',
			'info1' => '<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" /></p>
</div>
<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
</div>
</div>',
			'label2' => 'Target Description',
			'info2' => '<p>Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called &ldquo;histone code&rdquo;. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.</p>',
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			'meta_description' => 'H3K18ac (Histone H3 containing the acetylated lysine 18) Polyclonal Antibody validated  in ChIP-seq, ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
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			'name' => 'ELISA',
			'description' => '<div class="row">
<div class="small-12 medium-12 large-12 columns">Enzyme-linked immunosorbent assay.</div>
</div>',
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			'slug' => 'dot-blotting',
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			'description' => '<p><strong>Western blot</strong> : The quality of antibodies used in this technique is crucial for correct and specific protein identification. Diagenode offers huge selection of highly sensitive and specific western blot-validated antibodies.</p>
<p>Learn more about: <a href="https://www.diagenode.com/applications/western-blot">Loading control, MW marker visualization</a><em>. <br /></em></p>
<p><em></em>Check our selection of antibodies validated in Western blot.</p>',
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			'meta_description' => 'Diagenode offers a wide range of antibodies and technical support for western blot applications',
			'meta_title' => ' Western Blot  - Monoclonal antibody - Polyclonal antibody  | Diagenode',
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			'name' => 'IF',
			'description' => '<p><strong>Immunofluorescence</strong>:</p>
<p>Diagenode offers huge selection of highly sensitive antibodies validated in IF.</p>
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200229-IF.jpg" alt="" height="245" width="256" /></p>
<p><sup><strong>Immunofluorescence using the Diagenode monoclonal antibody directed against CRISPR/Cas9</strong></sup></p>
<p><sup>HeLa cells transfected with a Cas9 expression vector (left) or untransfected cells (right) were fixed in methanol at -20&deg;C, permeabilized with acetone at -20&deg;C and blocked with PBS containing 2% BSA. The cells were stained with the Cas9 C-terminal antibody (Cat. No. C15200229) diluted 1:400, followed by incubation with an anti-mouse secondary antibody coupled to AF488. The bottom images show counter-staining of the nuclei with Hoechst 33342.</sup></p>
<h5><sup>Check our selection of antibodies validated in IF.</sup></h5>',
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			'meta_description' => 'Diagenode offers a wide range of antibodies and technical support for ChIP-qPCR applications',
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<p>Read more:</p>
<p><a href="https://www.diagenode.com/en/categories/cutandtag">Products for CUT&amp;Tag assay</a></p>
<p><a href="https://www.diagenode.com/en/pages/cut-and-tag">Performance of Diagenode's antibodies in CUT&amp;Tag</a></p>
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<p><span style="font-weight: 400;">Diagenode provides leading solutions for epigenetic research. Because ChIP-seq is a widely-used technique, we validate our antibodies in ChIP and ChIP-seq experiments (in addition to conventional methods like Western blot, Dot blot, ELISA, and immunofluorescence) to provide the highest quality antibody. We standardize our validation and production to guarantee high product quality without technical bias. Diagenode guarantees ChIP-seq grade antibody performance under our suggested conditions.</span></p>
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<div class="small-12 medium-9 large-9 columns">
<p><strong>ChIP-seq profile</strong> of active (H3K4me3 and H3K36me3) and inactive (H3K27me3) marks using Diagenode antibodies.</p>
<img src="https://www.diagenode.com/img/categories/antibodies/chip-seq-grade-antibodies.png" /></div>
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<p><small> ChIP was performed on sheared chromatin from 100,000 K562 cells using iDeal ChIP-seq kit for Histones (cat. No. C01010051) with 1 &micro;g of the Diagenode antibodies against H3K27me3 (cat. No. C15410195) and H3K4me3 (cat. No. C15410003), and 0.5 &micro;g of the antibody against H3K36me3 (cat. No. C15410192). The IP'd DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer's instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. The figure shows the signal distribution along the complete sequence of human chromosome 3, a zoomin to a 10 Mb region and a further zoomin to a 1.5 Mb region. </small></p>
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<p>Diagenode&rsquo;s highly validated antibodies:</p>
<ul>
<li>Highly sensitive and specific</li>
<li>Cost-effective (requires less antibody per reaction)</li>
<li>Batch-specific data is available on the website</li>
<li>Expert technical support</li>
<li>Sample sizes available</li>
<li>100% satisfaction guarantee</li>
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			'description' => '<p>Histones are the main protein components of chromatin involved in the compaction of DNA into nucleosomes, the basic units of chromatin. A <strong>nucleosome</strong> consists of one pair of each of the core histones (<strong>H2A</strong>, <strong>H2B</strong>, <strong>H3</strong> and <strong>H4</strong>) forming an octameric structure wrapped by 146 base pairs of DNA. The different nucleosomes are linked by the linker histone<strong> H1, </strong>allowing for further condensation of chromatin.</p>
<p>The core histones have a globular structure with large unstructured N-terminal tails protruding from the nucleosome.&nbsp; They can undergo to multiple post-translational modifications (PTM), mainly at the N-terminal tails. These <strong>post-translational modifications </strong>include&nbsp; methylation, acetylation, phosphorylation, ubiquitinylation, citrullination, sumoylation, deamination and crotonylation.&nbsp; The most well characterized PTMs are <strong>methylation,</strong> <strong>acetylation and phosphorylation</strong>. Histone methylation occurs mainly on lysine (K) residues, which can be mono-, di- or tri-methylated, and on arginines (R), which can be mono-methylated and symmetrically or asymmetrically di-methylated. Histone acetylation occurs on lysines and histone phosphorylation mainly on serines (S), threonines (T) and tyrosines (Y).</p>
<p>The PTMs of the different residues are involved in numerous processes such as DNA repair, DNA replication and chromosome condensation. They influence the chromatin organization and can be positively or negatively associated with gene expression. Trimethylation of H3K4, H3K36 and H3K79, and lysine acetylation generally result in an open chromatin configuration (figure below) and are therefore associated with <strong>euchromatin</strong> and gene activation. Trimethylation of H3K9, K3K27 and H4K20, on the other hand, is enriched in <strong>heterochromatin </strong>and associated with gene silencing. The combination of different histone modifications is called the "<strong>histone code</strong>&rdquo;, analogous to the genetic code.</p>
<p><img src="https://www.diagenode.com/img/categories/antibodies/histone-marks-illustration.png" /></p>
<p>Diagenode is proud to offer a large range of antibodies against histones and histone modifications. Our&nbsp; antibodies are highly specific and have been validated in many applications, including <strong>ChIP</strong> and <strong>ChIP-seq</strong>.</p>
<p>Diagenode&rsquo;s collection includes antibodies recognizing:</p>
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<li><strong>Histone H1 variants</strong></li>
<li><strong>Histone H2A, H2A variants and histone H2A</strong> <strong>modifications</strong> (serine phosphorylation, lysine acetylation, lysine ubiquitinylation)</li>
<li><strong>Histone H2B and H2B</strong> <strong>modifications </strong>(serine phosphorylation, lysine acetylation)</li>
<li><strong>Histone H3 and H3 modifications </strong>(lysine methylation (mono-, di- and tri-methylated), lysine acetylation, serine phosphorylation, threonine phosphorylation, arginine methylation (mono-methylated, symmetrically and asymmetrically di-methylated))</li>
<li><strong>Histone H4 and H4 modifications (</strong>lysine methylation (mono-, di- and tri-methylated), lysine acetylation, arginine methylation (mono-methylated and symmetrically di-methylated), serine phosphorylation )</li>
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<p><span style="font-weight: 400;"><strong>HDAC's HAT's, HMT's and other</strong> <strong>enzymes</strong> which modify histones can be found in the category <a href="../categories/chromatin-modifying-proteins-histone-transferase">Histone modifying enzymes</a><br /></span></p>
<p><span style="font-weight: 400;"> Diagenode&rsquo;s highly validated antibodies:</span></p>
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<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Highly sensitive and specific</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cost-effective (requires less antibody per reaction)</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Batch-specific data is available on the website</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Expert technical support</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sample sizes available</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 100% satisfaction guarantee</span></li>
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<p><span style="font-weight: 400;">Diagenode&rsquo;s highly validated antibodies:</span></p>
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<li>Highly sensitive and specific</li>
<li>Cost-effective (requires less antibody per reaction)</li>
<li>Batch-specific data is available on the website</li>
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<div class="small-12 columns"><center></center>
<p><br />Chromatin immunoprecipitation (<b>ChIP</b>) is a technique to study the associations of proteins with the specific genomic regions in intact cells. One of the most important steps of this protocol is the immunoprecipitation of targeted protein using the antibody specifically recognizing it. The quality of antibodies used in ChIP is essential for the success of the experiment. Diagenode offers extensively validated ChIP-grade antibodies, confirmed for their specificity, and high level of performance in ChIP. Each batch is validated, and batch-specific data are available on the website.</p>
<p></p>
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<p><strong>ChIP results</strong> obtained with the antibody directed against H3K4me3 (Cat. No. <a href="../p/h3k4me3-polyclonal-antibody-premium-50-ug-50-ul">C15410003</a>).&nbsp;</p>
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<div class="small-12 medium-6 large-6 columns"><img src="https://www.diagenode.com/img/product/antibodies/C15410003-fig1-ChIP.jpg" alt="" width="400" height="315" />&nbsp;</div>
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<p></p>
<p></p>
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<p></p>
<p>Our aim at Diagenode is to offer the largest collection of highly specific <strong>ChIP-grade antibodies</strong>. We add new antibodies monthly. Find your ChIP-grade antibody in the list below and check more information about tested applications, extensive validation data, and product information.</p>',
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			'author' => 'Dr. Ermelinda Lomazzo, Institute of Physiological Chemistry, AG Prof. Beat Lutz. University Medical Center of the Johannes Gutenberg University Mainz, Germany',
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		'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone <strong>H3 containing the acetylated lysine 18 (H3K18ac)</strong>, using a KLH-conjugated synthetic peptide.</span></p>',
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. AB-001-0024), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
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<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
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<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" width="432" height="62" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" width="432" height="82" /></p>
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<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
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<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
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<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
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<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
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<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. AB-001-0024), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
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<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" width="432" height="62" /></p>
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<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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	'name' => 'Ermelinda Lomazzo',
	'description' => '<p><span>I have extensively used the antibodies against the histone modifications <a href="../p/h3k4me3-monoclonal-antibody-classic-50-ug-50-ul">H3K4me3</a>, <a href="../p/h3k27me3-polyclonal-antibody-classic-50-mg-34-ml">H3k27me3</a>, <a href="../p/h3k9ac-polyclonal-antibody-classic-50-ug-37-ul">H3K9ac</a>, <a href="../p/h4k8ac-polyclonal-antibody-classic-50-mg-41-ml">H4k8ac</a> and <a href="../p/h3k18ac-polyclonal-antibody-classic-50-mg-62-ml">H3K18ac</a> provided by Diagenode. The high level of specificity and selectivity of these antibodies in mouse brain samples, confirmed by using several negative and positive controls run in parallel with mouse brain tissue samples, ensured successful and reproducible results. I have been a Diagenode costumer for over one year now and I am extremely satisfied with the efficiency of the Bioruptor Pico for chromatin shearing as well as all of the ChIP materials (i.e., <a href="../categories/antibodies">antibodies</a>, blocking peptides, primer pairs for qPCR) provided by this company. Many thanks.</span></p>',
	'author' => 'Dr. Ermelinda Lomazzo, Institute of Physiological Chemistry, AG Prof. Beat Lutz. University Medical Center of the Johannes Gutenberg University Mainz, Germany',
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	'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone <strong>H3 containing the acetylated lysine 18 (H3K18ac)</strong>, using a KLH-conjugated synthetic peptide.</span></p>',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. AB-001-0024), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
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<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" width="432" height="62" /></p>
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<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
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<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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<p>Read more:</p>
<p><a href="https://www.diagenode.com/en/categories/cutandtag">Products for CUT&amp;Tag assay</a></p>
<p><a href="https://www.diagenode.com/en/pages/cut-and-tag">Performance of Diagenode's antibodies in CUT&amp;Tag</a></p>
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			'name' => 'H3K18ac Antibody - ChIP-seq Grade',
			'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone H3 containing the acetylated lysine 18 (H3K18ac), using a KLH-conjugated synthetic peptide.</span></p>',
			'label1' => 'Validation Data',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" /></p>
</div>
<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
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<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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			'meta_description' => 'H3K18ac (Histone H3 containing the acetylated lysine 18) Polyclonal Antibody validated  in ChIP-seq, ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
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			'description' => 'Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called “histone code”. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.',
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			'lot' => 'A1460D',
			'concentration' => '0.81 &micro;g/&micro;l',
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			'purity' => 'Affinity purified',
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			'application_table' => '<table>
<thead>
<tr>
<th>Applications</th>
<th>Suggested dilution</th>
<th>References</th>
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</thead>
<tbody>
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<td>ChIP/ChIP-seq <sup>*</sup></td>
<td>1 &mu;g/IP</td>
<td>Fig 1, 2</td>
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<tr>
<td>CUT&amp;Tag</td>
<td>0.5 &micro;g</td>
<td>Fig 3</td>
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<tr>
<td>ELISA</td>
<td>1:100</td>
<td>Fig 4</td>
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<tr>
<td>Dot Blotting</td>
<td>1:5,000</td>
<td>Fig 5</td>
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<tr>
<td>Western Blotting</td>
<td>1:500</td>
<td>Fig 6</td>
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<tr>
<td>Immunofluorescence</td>
<td>1:200</td>
<td>Fig 7</td>
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<p><small><sup>*</sup> Please note that the optimal antibody amount per ChIP should be determined by the end-user. We recommend testing 0.5-5 &mu;g per IP.</small></p>',
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$meta_description = 'H3K18ac (Histone H3 containing the acetylated lysine 18) Polyclonal Antibody validated  in ChIP-seq, ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.'
$meta_title = 'H3K18ac Antibody  - ChIP-seq Grade (C15410139) | Diagenode'
$product = array(
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		'id' => '2253',
		'antibody_id' => '107',
		'name' => 'H3K18ac Antibody - ChIP-seq Grade',
		'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone H3 containing the acetylated lysine 18 (H3K18ac), using a KLH-conjugated synthetic peptide.</span></p>',
		'label1' => 'Validation Data',
		'info1' => '<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" /></p>
</div>
<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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		'meta_description' => 'H3K18ac (Histone H3 containing the acetylated lysine 18) Polyclonal Antibody validated  in ChIP-seq, ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
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<th>Suggested dilution</th>
<th>References</th>
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<td>ChIP/ChIP-seq <sup>*</sup></td>
<td>1 &mu;g/IP</td>
<td>Fig 1, 2</td>
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<tr>
<td>CUT&amp;Tag</td>
<td>0.5 &micro;g</td>
<td>Fig 3</td>
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<tr>
<td>ELISA</td>
<td>1:100</td>
<td>Fig 4</td>
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<tr>
<td>Dot Blotting</td>
<td>1:5,000</td>
<td>Fig 5</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:500</td>
<td>Fig 6</td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:200</td>
<td>Fig 7</td>
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<p><small><sup>*</sup> Please note that the optimal antibody amount per ChIP should be determined by the end-user. We recommend testing 0.5-5 &mu;g per IP.</small></p>',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" /></p>
</div>
<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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<p>Learn more about: <a href="https://www.diagenode.com/applications/western-blot">Loading control, MW marker visualization</a><em>. <br /></em></p>
<p><em></em>Check our selection of antibodies validated in Western blot.</p>',
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<p>Diagenode offers huge selection of highly sensitive antibodies validated in IF.</p>
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200229-IF.jpg" alt="" height="245" width="256" /></p>
<p><sup><strong>Immunofluorescence using the Diagenode monoclonal antibody directed against CRISPR/Cas9</strong></sup></p>
<p><sup>HeLa cells transfected with a Cas9 expression vector (left) or untransfected cells (right) were fixed in methanol at -20&deg;C, permeabilized with acetone at -20&deg;C and blocked with PBS containing 2% BSA. The cells were stained with the Cas9 C-terminal antibody (Cat. No. C15200229) diluted 1:400, followed by incubation with an anti-mouse secondary antibody coupled to AF488. The bottom images show counter-staining of the nuclei with Hoechst 33342.</sup></p>
<h5><sup>Check our selection of antibodies validated in IF.</sup></h5>',
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<p>Read more:</p>
<p><a href="https://www.diagenode.com/en/categories/cutandtag">Products for CUT&amp;Tag assay</a></p>
<p><a href="https://www.diagenode.com/en/pages/cut-and-tag">Performance of Diagenode's antibodies in CUT&amp;Tag</a></p>
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<p><span style="font-weight: 400;">Diagenode provides leading solutions for epigenetic research. Because ChIP-seq is a widely-used technique, we validate our antibodies in ChIP and ChIP-seq experiments (in addition to conventional methods like Western blot, Dot blot, ELISA, and immunofluorescence) to provide the highest quality antibody. We standardize our validation and production to guarantee high product quality without technical bias. Diagenode guarantees ChIP-seq grade antibody performance under our suggested conditions.</span></p>
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<p><strong>ChIP-seq profile</strong> of active (H3K4me3 and H3K36me3) and inactive (H3K27me3) marks using Diagenode antibodies.</p>
<img src="https://www.diagenode.com/img/categories/antibodies/chip-seq-grade-antibodies.png" /></div>
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<p><small> ChIP was performed on sheared chromatin from 100,000 K562 cells using iDeal ChIP-seq kit for Histones (cat. No. C01010051) with 1 &micro;g of the Diagenode antibodies against H3K27me3 (cat. No. C15410195) and H3K4me3 (cat. No. C15410003), and 0.5 &micro;g of the antibody against H3K36me3 (cat. No. C15410192). The IP'd DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer's instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. The figure shows the signal distribution along the complete sequence of human chromosome 3, a zoomin to a 10 Mb region and a further zoomin to a 1.5 Mb region. </small></p>
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<p>Diagenode&rsquo;s highly validated antibodies:</p>
<ul>
<li>Highly sensitive and specific</li>
<li>Cost-effective (requires less antibody per reaction)</li>
<li>Batch-specific data is available on the website</li>
<li>Expert technical support</li>
<li>Sample sizes available</li>
<li>100% satisfaction guarantee</li>
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			'description' => '<p>Histones are the main protein components of chromatin involved in the compaction of DNA into nucleosomes, the basic units of chromatin. A <strong>nucleosome</strong> consists of one pair of each of the core histones (<strong>H2A</strong>, <strong>H2B</strong>, <strong>H3</strong> and <strong>H4</strong>) forming an octameric structure wrapped by 146 base pairs of DNA. The different nucleosomes are linked by the linker histone<strong> H1, </strong>allowing for further condensation of chromatin.</p>
<p>The core histones have a globular structure with large unstructured N-terminal tails protruding from the nucleosome.&nbsp; They can undergo to multiple post-translational modifications (PTM), mainly at the N-terminal tails. These <strong>post-translational modifications </strong>include&nbsp; methylation, acetylation, phosphorylation, ubiquitinylation, citrullination, sumoylation, deamination and crotonylation.&nbsp; The most well characterized PTMs are <strong>methylation,</strong> <strong>acetylation and phosphorylation</strong>. Histone methylation occurs mainly on lysine (K) residues, which can be mono-, di- or tri-methylated, and on arginines (R), which can be mono-methylated and symmetrically or asymmetrically di-methylated. Histone acetylation occurs on lysines and histone phosphorylation mainly on serines (S), threonines (T) and tyrosines (Y).</p>
<p>The PTMs of the different residues are involved in numerous processes such as DNA repair, DNA replication and chromosome condensation. They influence the chromatin organization and can be positively or negatively associated with gene expression. Trimethylation of H3K4, H3K36 and H3K79, and lysine acetylation generally result in an open chromatin configuration (figure below) and are therefore associated with <strong>euchromatin</strong> and gene activation. Trimethylation of H3K9, K3K27 and H4K20, on the other hand, is enriched in <strong>heterochromatin </strong>and associated with gene silencing. The combination of different histone modifications is called the "<strong>histone code</strong>&rdquo;, analogous to the genetic code.</p>
<p><img src="https://www.diagenode.com/img/categories/antibodies/histone-marks-illustration.png" /></p>
<p>Diagenode is proud to offer a large range of antibodies against histones and histone modifications. Our&nbsp; antibodies are highly specific and have been validated in many applications, including <strong>ChIP</strong> and <strong>ChIP-seq</strong>.</p>
<p>Diagenode&rsquo;s collection includes antibodies recognizing:</p>
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<li><strong>Histone H1 variants</strong></li>
<li><strong>Histone H2A, H2A variants and histone H2A</strong> <strong>modifications</strong> (serine phosphorylation, lysine acetylation, lysine ubiquitinylation)</li>
<li><strong>Histone H2B and H2B</strong> <strong>modifications </strong>(serine phosphorylation, lysine acetylation)</li>
<li><strong>Histone H3 and H3 modifications </strong>(lysine methylation (mono-, di- and tri-methylated), lysine acetylation, serine phosphorylation, threonine phosphorylation, arginine methylation (mono-methylated, symmetrically and asymmetrically di-methylated))</li>
<li><strong>Histone H4 and H4 modifications (</strong>lysine methylation (mono-, di- and tri-methylated), lysine acetylation, arginine methylation (mono-methylated and symmetrically di-methylated), serine phosphorylation )</li>
</ul>
<p><span style="font-weight: 400;"><strong>HDAC's HAT's, HMT's and other</strong> <strong>enzymes</strong> which modify histones can be found in the category <a href="../categories/chromatin-modifying-proteins-histone-transferase">Histone modifying enzymes</a><br /></span></p>
<p><span style="font-weight: 400;"> Diagenode&rsquo;s highly validated antibodies:</span></p>
<ul>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Highly sensitive and specific</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cost-effective (requires less antibody per reaction)</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Batch-specific data is available on the website</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Expert technical support</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sample sizes available</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 100% satisfaction guarantee</span></li>
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<p><span style="font-weight: 400;">Diagenode&rsquo;s highly validated antibodies:</span></p>
<ul>
<li>Highly sensitive and specific</li>
<li>Cost-effective (requires less antibody per reaction)</li>
<li>Batch-specific data is available on the website</li>
<li>Expert technical support</li>
<li>Sample sizes available</li>
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<p><br />Chromatin immunoprecipitation (<b>ChIP</b>) is a technique to study the associations of proteins with the specific genomic regions in intact cells. One of the most important steps of this protocol is the immunoprecipitation of targeted protein using the antibody specifically recognizing it. The quality of antibodies used in ChIP is essential for the success of the experiment. Diagenode offers extensively validated ChIP-grade antibodies, confirmed for their specificity, and high level of performance in ChIP. Each batch is validated, and batch-specific data are available on the website.</p>
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<p><strong>ChIP results</strong> obtained with the antibody directed against H3K4me3 (Cat. No. <a href="../p/h3k4me3-polyclonal-antibody-premium-50-ug-50-ul">C15410003</a>).&nbsp;</p>
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<p>Our aim at Diagenode is to offer the largest collection of highly specific <strong>ChIP-grade antibodies</strong>. We add new antibodies monthly. Find your ChIP-grade antibody in the list below and check more information about tested applications, extensive validation data, and product information.</p>',
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			'description' => '<p style="text-align: justify;"><span>Epigenetic research tools have evolved over time from endpoint PCR to qPCR to the analyses of large sets of genome-wide sequencing data. ChIP sequencing (ChIP-seq) has now become the gold standard method for chromatin studies, given the accuracy and coverage scale of the approach over other methods. Successful ChIP-seq, however, requires a higher level of experimental accuracy and consistency in all steps of ChIP than ever before. Particularly crucial is the quality of ChIP antibodies. </span></p>',
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		'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone <strong>H3 containing the acetylated lysine 18 (H3K18ac)</strong>, using a KLH-conjugated synthetic peptide.</span></p>',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. AB-001-0024), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
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<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
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<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" width="432" height="62" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" width="432" height="82" /></p>
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<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
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<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
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<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. AB-001-0024), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
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<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. AB-001-0024), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
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<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" width="432" height="62" /></p>
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<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
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<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
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<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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<p>Read more:</p>
<p><a href="https://www.diagenode.com/en/categories/cutandtag">Products for CUT&amp;Tag assay</a></p>
<p><a href="https://www.diagenode.com/en/pages/cut-and-tag">Performance of Diagenode's antibodies in CUT&amp;Tag</a></p>
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		'safety_sheet_id' => '3523'
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$publication = array(
	'id' => '3260',
	'name' => 'Myc Regulates Chromatin Decompaction and Nuclear Architecture during B Cell Activation',
	'authors' => 'Kieffer-Kwon K.R. et al.',
	'description' => '<p>50 years ago, Vincent Allfrey and colleagues discovered that lymphocyte activation triggers massive acetylation of chromatin. However, the molecular mechanisms driving epigenetic accessibility are still unknown. We here show that stimulated lymphocytes decondense chromatin by three differentially regulated steps. First, chromatin is repositioned away from the nuclear periphery in response to global acetylation. Second, histone nanodomain clusters decompact into mononucleosome fibers through a mechanism that requires Myc and continual energy input. Single-molecule imaging shows that this step lowers transcription factor residence time and non-specific collisions during sampling for DNA targets. Third, chromatin interactions shift from long range to predominantly short range, and CTCF-mediated loops and contact domains double in numbers. This architectural change facilitates cognate promoter-enhancer contacts and also requires Myc and continual ATP production. Our results thus define the nature and transcriptional impact of chromatin decondensation and reveal an unexpected role for Myc in the establishment of nuclear topology in mammalian cells.</p>',
	'date' => '2017-08-17',
	'pmid' => 'https://www.ncbi.nlm.nih.gov/pubmed/28803781',
	'doi' => '',
	'modified' => '2017-10-05 11:28:44',
	'created' => '2017-10-05 11:28:44',
	'ProductsPublication' => array(
		'id' => '2325',
		'product_id' => '2253',
		'publication_id' => '3260'
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)
$externalLink = ' <a href="https://www.ncbi.nlm.nih.gov/pubmed/28803781" target="_blank"><i class="fa fa-external-link"></i></a>'
include - APP/View/Products/view.ctp, line 755
View::_evaluate() - CORE/Cake/View/View.php, line 971
View::_render() - CORE/Cake/View/View.php, line 933
View::render() - CORE/Cake/View/View.php, line 473
Controller::render() - CORE/Cake/Controller/Controller.php, line 963
ProductsController::slug() - APP/Controller/ProductsController.php, line 1052
ReflectionMethod::invokeArgs() - [internal], line ??
Controller::invokeAction() - CORE/Cake/Controller/Controller.php, line 491
Dispatcher::_invoke() - CORE/Cake/Routing/Dispatcher.php, line 193
Dispatcher::dispatch() - CORE/Cake/Routing/Dispatcher.php, line 167
[main] - APP/webroot/index.php, line 118

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	'meta_description' => 'H3K18ac (Histone H3 containing the acetylated lysine 18) Polyclonal Antibody validated  in ChIP-seq, ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
	'meta_title' => 'H3K18ac Antibody  - ChIP-seq Grade (C15410139) | Diagenode',
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			'id' => '2253',
			'antibody_id' => '107',
			'name' => 'H3K18ac Antibody - ChIP-seq Grade',
			'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone H3 containing the acetylated lysine 18 (H3K18ac), using a KLH-conjugated synthetic peptide.</span></p>',
			'label1' => 'Validation Data',
			'info1' => '<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" /></p>
</div>
<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
</div>
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			'label2' => '',
			'info2' => '<p>Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called &ldquo;histone code&rdquo;. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.</p>',
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			'format' => '50 μg',
			'catalog_number' => 'C15410139',
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			'sf_code' => 'C15410139-D001-000581',
			'type' => 'FRE',
			'search_order' => '03-Antibody',
			'price_EUR' => '380',
			'price_USD' => '380',
			'price_GBP' => '340',
			'price_JPY' => '59525',
			'price_CNY' => '',
			'price_AUD' => '950',
			'country' => 'ALL',
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			'featured' => false,
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			'slug' => 'h3k18ac-polyclonal-antibody-classic-50-mg-62-ml',
			'meta_title' => 'H3K18ac Antibody  - ChIP-seq Grade (C15410139) | Diagenode',
			'meta_keywords' => '',
			'meta_description' => 'H3K18ac (Histone H3 containing the acetylated lysine 18) Polyclonal Antibody validated  in ChIP-seq, ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
			'modified' => '2024-01-16 16:10:23',
			'created' => '2015-06-29 14:08:20',
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		'Antibody' => array(
			'host' => '*****',
			'id' => '107',
			'name' => 'H3K18ac polyclonal antibody',
			'description' => 'Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called “histone code”. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.',
			'clonality' => '',
			'isotype' => '',
			'lot' => 'A1460D',
			'concentration' => '0.81 &micro;g/&micro;l',
			'reactivity' => 'Human, mouse, wide range expected',
			'type' => 'Polyclonal',
			'purity' => 'Affinity purified',
			'classification' => 'Classic',
			'application_table' => '<table>
<thead>
<tr>
<th>Applications</th>
<th>Suggested dilution</th>
<th>References</th>
</tr>
</thead>
<tbody>
<tr>
<td>ChIP/ChIP-seq <sup>*</sup></td>
<td>1 &mu;g/IP</td>
<td>Fig 1, 2</td>
</tr>
<tr>
<td>CUT&amp;Tag</td>
<td>0.5 &micro;g</td>
<td>Fig 3</td>
</tr>
<tr>
<td>ELISA</td>
<td>1:100</td>
<td>Fig 4</td>
</tr>
<tr>
<td>Dot Blotting</td>
<td>1:5,000</td>
<td>Fig 5</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:500</td>
<td>Fig 6</td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:200</td>
<td>Fig 7</td>
</tr>
</tbody>
</table>
<p><small><sup>*</sup> Please note that the optimal antibody amount per ChIP should be determined by the end-user. We recommend testing 0.5-5 &mu;g per IP.</small></p>',
			'storage_conditions' => '',
			'storage_buffer' => '',
			'precautions' => 'This product is for research use only. Not for use in diagnostic or therapeutic procedures.',
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			'modified' => '2022-04-08 12:07:28',
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			'select_label' => '107 - H3K18ac polyclonal antibody (A1460D - 0.81 &micro;g/&micro;l - Human, mouse, wide range expected - Affinity purified - Rabbit)'
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$meta_title = 'H3K18ac Antibody  - ChIP-seq Grade (C15410139) | Diagenode'
$product = array(
	'Product' => array(
		'id' => '2253',
		'antibody_id' => '107',
		'name' => 'H3K18ac Antibody - ChIP-seq Grade',
		'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone H3 containing the acetylated lysine 18 (H3K18ac), using a KLH-conjugated synthetic peptide.</span></p>',
		'label1' => 'Validation Data',
		'info1' => '<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" /></p>
</div>
<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
</div>
</div>',
		'label2' => 'Target Description',
		'info2' => '<p>Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called &ldquo;histone code&rdquo;. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.</p>',
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		'sf_code' => 'C15410139-D001-000581',
		'type' => 'FRE',
		'search_order' => '03-Antibody',
		'price_EUR' => '380',
		'price_USD' => '380',
		'price_GBP' => '340',
		'price_JPY' => '59525',
		'price_CNY' => '',
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		'slug' => 'h3k18ac-polyclonal-antibody-classic-50-mg-62-ml',
		'meta_title' => 'H3K18ac Antibody  - ChIP-seq Grade (C15410139) | Diagenode',
		'meta_keywords' => '',
		'meta_description' => 'H3K18ac (Histone H3 containing the acetylated lysine 18) Polyclonal Antibody validated  in ChIP-seq, ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
		'modified' => '2024-01-16 16:10:23',
		'created' => '2015-06-29 14:08:20',
		'locale' => 'zho'
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	'Antibody' => array(
		'host' => '*****',
		'id' => '107',
		'name' => 'H3K18ac polyclonal antibody',
		'description' => 'Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called “histone code”. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.',
		'clonality' => '',
		'isotype' => '',
		'lot' => 'A1460D',
		'concentration' => '0.81 &micro;g/&micro;l',
		'reactivity' => 'Human, mouse, wide range expected',
		'type' => 'Polyclonal',
		'purity' => 'Affinity purified',
		'classification' => 'Classic',
		'application_table' => '<table>
<thead>
<tr>
<th>Applications</th>
<th>Suggested dilution</th>
<th>References</th>
</tr>
</thead>
<tbody>
<tr>
<td>ChIP/ChIP-seq <sup>*</sup></td>
<td>1 &mu;g/IP</td>
<td>Fig 1, 2</td>
</tr>
<tr>
<td>CUT&amp;Tag</td>
<td>0.5 &micro;g</td>
<td>Fig 3</td>
</tr>
<tr>
<td>ELISA</td>
<td>1:100</td>
<td>Fig 4</td>
</tr>
<tr>
<td>Dot Blotting</td>
<td>1:5,000</td>
<td>Fig 5</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:500</td>
<td>Fig 6</td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:200</td>
<td>Fig 7</td>
</tr>
</tbody>
</table>
<p><small><sup>*</sup> Please note that the optimal antibody amount per ChIP should be determined by the end-user. We recommend testing 0.5-5 &mu;g per IP.</small></p>',
		'storage_conditions' => '',
		'storage_buffer' => '',
		'precautions' => 'This product is for research use only. Not for use in diagnostic or therapeutic procedures.',
		'uniprot_acc' => '',
		'slug' => '',
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		'modified' => '2022-04-08 12:07:28',
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		'select_label' => '107 - H3K18ac polyclonal antibody (A1460D - 0.81 &micro;g/&micro;l - Human, mouse, wide range expected - Affinity purified - Rabbit)'
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	'Slave' => array(
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			'name' => 'C15410139',
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			'created' => '2016-02-18 18:05:09'
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		'Group' => array(
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			'name' => 'C15410139',
			'product_id' => '2253',
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			'created' => '2016-02-18 18:05:09'
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		'Master' => array(
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			'antibody_id' => '107',
			'name' => 'H3K18ac Antibody',
			'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone <strong>H3 containing the acetylated lysine 18 (H3K18ac),</strong> using a KLH-conjugated synthetic peptide.</span></p>',
			'label1' => 'Validation Data',
			'info1' => '<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" /></p>
</div>
<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
</div>
</div>',
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			'info2' => '<p>Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called &ldquo;histone code&rdquo;. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.</p>',
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<p>Learn more about: <a href="https://www.diagenode.com/applications/western-blot">Loading control, MW marker visualization</a><em>. <br /></em></p>
<p><em></em>Check our selection of antibodies validated in Western blot.</p>',
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			'description' => '<p><strong>Immunofluorescence</strong>:</p>
<p>Diagenode offers huge selection of highly sensitive antibodies validated in IF.</p>
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200229-IF.jpg" alt="" height="245" width="256" /></p>
<p><sup><strong>Immunofluorescence using the Diagenode monoclonal antibody directed against CRISPR/Cas9</strong></sup></p>
<p><sup>HeLa cells transfected with a Cas9 expression vector (left) or untransfected cells (right) were fixed in methanol at -20&deg;C, permeabilized with acetone at -20&deg;C and blocked with PBS containing 2% BSA. The cells were stained with the Cas9 C-terminal antibody (Cat. No. C15200229) diluted 1:400, followed by incubation with an anti-mouse secondary antibody coupled to AF488. The bottom images show counter-staining of the nuclei with Hoechst 33342.</sup></p>
<h5><sup>Check our selection of antibodies validated in IF.</sup></h5>',
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<p>Read more:</p>
<p><a href="https://www.diagenode.com/en/categories/cutandtag">Products for CUT&amp;Tag assay</a></p>
<p><a href="https://www.diagenode.com/en/pages/cut-and-tag">Performance of Diagenode's antibodies in CUT&amp;Tag</a></p>
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			'description' => '<p><b>Unparalleled ChIP-Seq results with the most rigorously validated antibodies</b></p>
<p><span style="font-weight: 400;">Diagenode provides leading solutions for epigenetic research. Because ChIP-seq is a widely-used technique, we validate our antibodies in ChIP and ChIP-seq experiments (in addition to conventional methods like Western blot, Dot blot, ELISA, and immunofluorescence) to provide the highest quality antibody. We standardize our validation and production to guarantee high product quality without technical bias. Diagenode guarantees ChIP-seq grade antibody performance under our suggested conditions.</span></p>
<div class="row">
<div class="small-12 medium-9 large-9 columns">
<p><strong>ChIP-seq profile</strong> of active (H3K4me3 and H3K36me3) and inactive (H3K27me3) marks using Diagenode antibodies.</p>
<img src="https://www.diagenode.com/img/categories/antibodies/chip-seq-grade-antibodies.png" /></div>
<div class="small-12 medium-3 large-3 columns">
<p><small> ChIP was performed on sheared chromatin from 100,000 K562 cells using iDeal ChIP-seq kit for Histones (cat. No. C01010051) with 1 &micro;g of the Diagenode antibodies against H3K27me3 (cat. No. C15410195) and H3K4me3 (cat. No. C15410003), and 0.5 &micro;g of the antibody against H3K36me3 (cat. No. C15410192). The IP'd DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer's instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. The figure shows the signal distribution along the complete sequence of human chromosome 3, a zoomin to a 10 Mb region and a further zoomin to a 1.5 Mb region. </small></p>
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<p>Diagenode&rsquo;s highly validated antibodies:</p>
<ul>
<li>Highly sensitive and specific</li>
<li>Cost-effective (requires less antibody per reaction)</li>
<li>Batch-specific data is available on the website</li>
<li>Expert technical support</li>
<li>Sample sizes available</li>
<li>100% satisfaction guarantee</li>
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			'name' => 'Histone antibodies',
			'description' => '<p>Histones are the main protein components of chromatin involved in the compaction of DNA into nucleosomes, the basic units of chromatin. A <strong>nucleosome</strong> consists of one pair of each of the core histones (<strong>H2A</strong>, <strong>H2B</strong>, <strong>H3</strong> and <strong>H4</strong>) forming an octameric structure wrapped by 146 base pairs of DNA. The different nucleosomes are linked by the linker histone<strong> H1, </strong>allowing for further condensation of chromatin.</p>
<p>The core histones have a globular structure with large unstructured N-terminal tails protruding from the nucleosome.&nbsp; They can undergo to multiple post-translational modifications (PTM), mainly at the N-terminal tails. These <strong>post-translational modifications </strong>include&nbsp; methylation, acetylation, phosphorylation, ubiquitinylation, citrullination, sumoylation, deamination and crotonylation.&nbsp; The most well characterized PTMs are <strong>methylation,</strong> <strong>acetylation and phosphorylation</strong>. Histone methylation occurs mainly on lysine (K) residues, which can be mono-, di- or tri-methylated, and on arginines (R), which can be mono-methylated and symmetrically or asymmetrically di-methylated. Histone acetylation occurs on lysines and histone phosphorylation mainly on serines (S), threonines (T) and tyrosines (Y).</p>
<p>The PTMs of the different residues are involved in numerous processes such as DNA repair, DNA replication and chromosome condensation. They influence the chromatin organization and can be positively or negatively associated with gene expression. Trimethylation of H3K4, H3K36 and H3K79, and lysine acetylation generally result in an open chromatin configuration (figure below) and are therefore associated with <strong>euchromatin</strong> and gene activation. Trimethylation of H3K9, K3K27 and H4K20, on the other hand, is enriched in <strong>heterochromatin </strong>and associated with gene silencing. The combination of different histone modifications is called the "<strong>histone code</strong>&rdquo;, analogous to the genetic code.</p>
<p><img src="https://www.diagenode.com/img/categories/antibodies/histone-marks-illustration.png" /></p>
<p>Diagenode is proud to offer a large range of antibodies against histones and histone modifications. Our&nbsp; antibodies are highly specific and have been validated in many applications, including <strong>ChIP</strong> and <strong>ChIP-seq</strong>.</p>
<p>Diagenode&rsquo;s collection includes antibodies recognizing:</p>
<ul>
<li><strong>Histone H1 variants</strong></li>
<li><strong>Histone H2A, H2A variants and histone H2A</strong> <strong>modifications</strong> (serine phosphorylation, lysine acetylation, lysine ubiquitinylation)</li>
<li><strong>Histone H2B and H2B</strong> <strong>modifications </strong>(serine phosphorylation, lysine acetylation)</li>
<li><strong>Histone H3 and H3 modifications </strong>(lysine methylation (mono-, di- and tri-methylated), lysine acetylation, serine phosphorylation, threonine phosphorylation, arginine methylation (mono-methylated, symmetrically and asymmetrically di-methylated))</li>
<li><strong>Histone H4 and H4 modifications (</strong>lysine methylation (mono-, di- and tri-methylated), lysine acetylation, arginine methylation (mono-methylated and symmetrically di-methylated), serine phosphorylation )</li>
</ul>
<p><span style="font-weight: 400;"><strong>HDAC's HAT's, HMT's and other</strong> <strong>enzymes</strong> which modify histones can be found in the category <a href="../categories/chromatin-modifying-proteins-histone-transferase">Histone modifying enzymes</a><br /></span></p>
<p><span style="font-weight: 400;"> Diagenode&rsquo;s highly validated antibodies:</span></p>
<ul>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Highly sensitive and specific</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cost-effective (requires less antibody per reaction)</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Batch-specific data is available on the website</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Expert technical support</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sample sizes available</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 100% satisfaction guarantee</span></li>
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			'description' => '<p><span style="font-weight: 400;">All Diagenode&rsquo;s antibodies are listed below. Please, use our Quick search field to find the antibody of interest by target name, application, purity.</span></p>
<p><span style="font-weight: 400;">Diagenode&rsquo;s highly validated antibodies:</span></p>
<ul>
<li>Highly sensitive and specific</li>
<li>Cost-effective (requires less antibody per reaction)</li>
<li>Batch-specific data is available on the website</li>
<li>Expert technical support</li>
<li>Sample sizes available</li>
<li>100% satisfaction guarantee</li>
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<div class="small-12 columns"><center></center>
<p><br />Chromatin immunoprecipitation (<b>ChIP</b>) is a technique to study the associations of proteins with the specific genomic regions in intact cells. One of the most important steps of this protocol is the immunoprecipitation of targeted protein using the antibody specifically recognizing it. The quality of antibodies used in ChIP is essential for the success of the experiment. Diagenode offers extensively validated ChIP-grade antibodies, confirmed for their specificity, and high level of performance in ChIP. Each batch is validated, and batch-specific data are available on the website.</p>
<p></p>
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<p><strong>ChIP results</strong> obtained with the antibody directed against H3K4me3 (Cat. No. <a href="../p/h3k4me3-polyclonal-antibody-premium-50-ug-50-ul">C15410003</a>).&nbsp;</p>
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<div class="small-12 medium-6 large-6 columns"><img src="https://www.diagenode.com/img/product/antibodies/C15410003-fig1-ChIP.jpg" alt="" width="400" height="315" />&nbsp;</div>
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<p></p>
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<p></p>
<p>Our aim at Diagenode is to offer the largest collection of highly specific <strong>ChIP-grade antibodies</strong>. We add new antibodies monthly. Find your ChIP-grade antibody in the list below and check more information about tested applications, extensive validation data, and product information.</p>',
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		'name' => 'H3K18ac Antibody (sample size)',
		'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone <strong>H3 containing the acetylated lysine 18 (H3K18ac)</strong>, using a KLH-conjugated synthetic peptide.</span></p>',
		'label1' => 'Validation Data',
		'info1' => '<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. AB-001-0024), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" width="432" height="62" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" width="432" height="82" /></p>
</div>
<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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	'antibody_id' => '107',
	'name' => 'H3K18ac Antibody (sample size)',
	'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone <strong>H3 containing the acetylated lysine 18 (H3K18ac)</strong>, using a KLH-conjugated synthetic peptide.</span></p>',
	'label1' => 'Validation Data',
	'info1' => '<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. AB-001-0024), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" width="432" height="62" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" width="432" height="82" /></p>
</div>
<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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$testimonials = '<blockquote><p><span>I have extensively used the antibodies against the histone modifications <a href="../p/h3k4me3-monoclonal-antibody-classic-50-ug-50-ul">H3K4me3</a>, <a href="../p/h3k27me3-polyclonal-antibody-classic-50-mg-34-ml">H3k27me3</a>, <a href="../p/h3k9ac-polyclonal-antibody-classic-50-ug-37-ul">H3K9ac</a>, <a href="../p/h4k8ac-polyclonal-antibody-classic-50-mg-41-ml">H4k8ac</a> and <a href="../p/h3k18ac-polyclonal-antibody-classic-50-mg-62-ml">H3K18ac</a> provided by Diagenode. The high level of specificity and selectivity of these antibodies in mouse brain samples, confirmed by using several negative and positive controls run in parallel with mouse brain tissue samples, ensured successful and reproducible results. I have been a Diagenode costumer for over one year now and I am extremely satisfied with the efficiency of the Bioruptor Pico for chromatin shearing as well as all of the ChIP materials (i.e., <a href="../categories/antibodies">antibodies</a>, blocking peptides, primer pairs for qPCR) provided by this company. Many thanks.</span></p><cite>Dr. Ermelinda Lomazzo, Institute of Physiological Chemistry, AG Prof. Beat Lutz. University Medical Center of the Johannes Gutenberg University Mainz, Germany</cite></blockquote>
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	'description' => '<p><span>I have extensively used the antibodies against the histone modifications <a href="../p/h3k4me3-monoclonal-antibody-classic-50-ug-50-ul">H3K4me3</a>, <a href="../p/h3k27me3-polyclonal-antibody-classic-50-mg-34-ml">H3k27me3</a>, <a href="../p/h3k9ac-polyclonal-antibody-classic-50-ug-37-ul">H3K9ac</a>, <a href="../p/h4k8ac-polyclonal-antibody-classic-50-mg-41-ml">H4k8ac</a> and <a href="../p/h3k18ac-polyclonal-antibody-classic-50-mg-62-ml">H3K18ac</a> provided by Diagenode. The high level of specificity and selectivity of these antibodies in mouse brain samples, confirmed by using several negative and positive controls run in parallel with mouse brain tissue samples, ensured successful and reproducible results. I have been a Diagenode costumer for over one year now and I am extremely satisfied with the efficiency of the Bioruptor Pico for chromatin shearing as well as all of the ChIP materials (i.e., <a href="../categories/antibodies">antibodies</a>, blocking peptides, primer pairs for qPCR) provided by this company. Many thanks.</span></p>',
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	'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone <strong>H3 containing the acetylated lysine 18 (H3K18ac)</strong>, using a KLH-conjugated synthetic peptide.</span></p>',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. AB-001-0024), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
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<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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<p>Read more:</p>
<p><a href="https://www.diagenode.com/en/categories/cutandtag">Products for CUT&amp;Tag assay</a></p>
<p><a href="https://www.diagenode.com/en/pages/cut-and-tag">Performance of Diagenode's antibodies in CUT&amp;Tag</a></p>
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	'meta_description' => 'H3K18ac (Histone H3 containing the acetylated lysine 18) Polyclonal Antibody validated  in ChIP-seq, ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
	'meta_title' => 'H3K18ac Antibody  - ChIP-seq Grade (C15410139) | Diagenode',
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			'id' => '2253',
			'antibody_id' => '107',
			'name' => 'H3K18ac Antibody - ChIP-seq Grade',
			'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone H3 containing the acetylated lysine 18 (H3K18ac), using a KLH-conjugated synthetic peptide.</span></p>',
			'label1' => 'Validation Data',
			'info1' => '<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" /></p>
</div>
<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
</div>
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			'info2' => '<p>Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called &ldquo;histone code&rdquo;. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.</p>',
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			'slug' => 'h3k18ac-polyclonal-antibody-classic-50-mg-62-ml',
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			'meta_keywords' => '',
			'meta_description' => 'H3K18ac (Histone H3 containing the acetylated lysine 18) Polyclonal Antibody validated  in ChIP-seq, ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
			'modified' => '2024-01-16 16:10:23',
			'created' => '2015-06-29 14:08:20',
			'locale' => 'zho'
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		'Antibody' => array(
			'host' => '*****',
			'id' => '107',
			'name' => 'H3K18ac polyclonal antibody',
			'description' => 'Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called “histone code”. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.',
			'clonality' => '',
			'isotype' => '',
			'lot' => 'A1460D',
			'concentration' => '0.81 &micro;g/&micro;l',
			'reactivity' => 'Human, mouse, wide range expected',
			'type' => 'Polyclonal',
			'purity' => 'Affinity purified',
			'classification' => 'Classic',
			'application_table' => '<table>
<thead>
<tr>
<th>Applications</th>
<th>Suggested dilution</th>
<th>References</th>
</tr>
</thead>
<tbody>
<tr>
<td>ChIP/ChIP-seq <sup>*</sup></td>
<td>1 &mu;g/IP</td>
<td>Fig 1, 2</td>
</tr>
<tr>
<td>CUT&amp;Tag</td>
<td>0.5 &micro;g</td>
<td>Fig 3</td>
</tr>
<tr>
<td>ELISA</td>
<td>1:100</td>
<td>Fig 4</td>
</tr>
<tr>
<td>Dot Blotting</td>
<td>1:5,000</td>
<td>Fig 5</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:500</td>
<td>Fig 6</td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:200</td>
<td>Fig 7</td>
</tr>
</tbody>
</table>
<p><small><sup>*</sup> Please note that the optimal antibody amount per ChIP should be determined by the end-user. We recommend testing 0.5-5 &mu;g per IP.</small></p>',
			'storage_conditions' => '',
			'storage_buffer' => '',
			'precautions' => 'This product is for research use only. Not for use in diagnostic or therapeutic procedures.',
			'uniprot_acc' => '',
			'slug' => '',
			'meta_keywords' => '',
			'meta_description' => '',
			'modified' => '2022-04-08 12:07:28',
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$meta_description = 'H3K18ac (Histone H3 containing the acetylated lysine 18) Polyclonal Antibody validated  in ChIP-seq, ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.'
$meta_title = 'H3K18ac Antibody  - ChIP-seq Grade (C15410139) | Diagenode'
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		'id' => '2253',
		'antibody_id' => '107',
		'name' => 'H3K18ac Antibody - ChIP-seq Grade',
		'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone H3 containing the acetylated lysine 18 (H3K18ac), using a KLH-conjugated synthetic peptide.</span></p>',
		'label1' => 'Validation Data',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
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<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
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<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" /></p>
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<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
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<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
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<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
</div>
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		'slug' => 'h3k18ac-polyclonal-antibody-classic-50-mg-62-ml',
		'meta_title' => 'H3K18ac Antibody  - ChIP-seq Grade (C15410139) | Diagenode',
		'meta_keywords' => '',
		'meta_description' => 'H3K18ac (Histone H3 containing the acetylated lysine 18) Polyclonal Antibody validated  in ChIP-seq, ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
		'modified' => '2024-01-16 16:10:23',
		'created' => '2015-06-29 14:08:20',
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	'Antibody' => array(
		'host' => '*****',
		'id' => '107',
		'name' => 'H3K18ac polyclonal antibody',
		'description' => 'Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called “histone code”. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Acetylation of histone H3K18 is associated with gene activation.',
		'clonality' => '',
		'isotype' => '',
		'lot' => 'A1460D',
		'concentration' => '0.81 &micro;g/&micro;l',
		'reactivity' => 'Human, mouse, wide range expected',
		'type' => 'Polyclonal',
		'purity' => 'Affinity purified',
		'classification' => 'Classic',
		'application_table' => '<table>
<thead>
<tr>
<th>Applications</th>
<th>Suggested dilution</th>
<th>References</th>
</tr>
</thead>
<tbody>
<tr>
<td>ChIP/ChIP-seq <sup>*</sup></td>
<td>1 &mu;g/IP</td>
<td>Fig 1, 2</td>
</tr>
<tr>
<td>CUT&amp;Tag</td>
<td>0.5 &micro;g</td>
<td>Fig 3</td>
</tr>
<tr>
<td>ELISA</td>
<td>1:100</td>
<td>Fig 4</td>
</tr>
<tr>
<td>Dot Blotting</td>
<td>1:5,000</td>
<td>Fig 5</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:500</td>
<td>Fig 6</td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:200</td>
<td>Fig 7</td>
</tr>
</tbody>
</table>
<p><small><sup>*</sup> Please note that the optimal antibody amount per ChIP should be determined by the end-user. We recommend testing 0.5-5 &mu;g per IP.</small></p>',
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		'precautions' => 'This product is for research use only. Not for use in diagnostic or therapeutic procedures.',
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		'Master' => array(
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			'name' => 'H3K18ac Antibody',
			'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone <strong>H3 containing the acetylated lysine 18 (H3K18ac),</strong> using a KLH-conjugated synthetic peptide.</span></p>',
			'label1' => 'Validation Data',
			'info1' => '<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. C15410139), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
</div>
<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" /></p>
</div>
<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
</div>
</div>',
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			'meta_title' => 'H3K18ac Antibody - ChIP-seq Grade (C15410139) | Diagenode',
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<p>Learn more about: <a href="https://www.diagenode.com/applications/western-blot">Loading control, MW marker visualization</a><em>. <br /></em></p>
<p><em></em>Check our selection of antibodies validated in Western blot.</p>',
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<p>Diagenode offers huge selection of highly sensitive antibodies validated in IF.</p>
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200229-IF.jpg" alt="" height="245" width="256" /></p>
<p><sup><strong>Immunofluorescence using the Diagenode monoclonal antibody directed against CRISPR/Cas9</strong></sup></p>
<p><sup>HeLa cells transfected with a Cas9 expression vector (left) or untransfected cells (right) were fixed in methanol at -20&deg;C, permeabilized with acetone at -20&deg;C and blocked with PBS containing 2% BSA. The cells were stained with the Cas9 C-terminal antibody (Cat. No. C15200229) diluted 1:400, followed by incubation with an anti-mouse secondary antibody coupled to AF488. The bottom images show counter-staining of the nuclei with Hoechst 33342.</sup></p>
<h5><sup>Check our selection of antibodies validated in IF.</sup></h5>',
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			'meta_description' => 'Diagenode offers a wide range of antibodies and technical support for ChIP Sequencing applications',
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			'meta_description' => 'Diagenode offers a wide range of antibodies and technical support for ChIP-qPCR applications',
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<p>Read more:</p>
<p><a href="https://www.diagenode.com/en/categories/cutandtag">Products for CUT&amp;Tag assay</a></p>
<p><a href="https://www.diagenode.com/en/pages/cut-and-tag">Performance of Diagenode's antibodies in CUT&amp;Tag</a></p>
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			'description' => '<p><b>Unparalleled ChIP-Seq results with the most rigorously validated antibodies</b></p>
<p><span style="font-weight: 400;">Diagenode provides leading solutions for epigenetic research. Because ChIP-seq is a widely-used technique, we validate our antibodies in ChIP and ChIP-seq experiments (in addition to conventional methods like Western blot, Dot blot, ELISA, and immunofluorescence) to provide the highest quality antibody. We standardize our validation and production to guarantee high product quality without technical bias. Diagenode guarantees ChIP-seq grade antibody performance under our suggested conditions.</span></p>
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<div class="small-12 medium-9 large-9 columns">
<p><strong>ChIP-seq profile</strong> of active (H3K4me3 and H3K36me3) and inactive (H3K27me3) marks using Diagenode antibodies.</p>
<img src="https://www.diagenode.com/img/categories/antibodies/chip-seq-grade-antibodies.png" /></div>
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<p><small> ChIP was performed on sheared chromatin from 100,000 K562 cells using iDeal ChIP-seq kit for Histones (cat. No. C01010051) with 1 &micro;g of the Diagenode antibodies against H3K27me3 (cat. No. C15410195) and H3K4me3 (cat. No. C15410003), and 0.5 &micro;g of the antibody against H3K36me3 (cat. No. C15410192). The IP'd DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer's instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. The figure shows the signal distribution along the complete sequence of human chromosome 3, a zoomin to a 10 Mb region and a further zoomin to a 1.5 Mb region. </small></p>
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<p>Diagenode&rsquo;s highly validated antibodies:</p>
<ul>
<li>Highly sensitive and specific</li>
<li>Cost-effective (requires less antibody per reaction)</li>
<li>Batch-specific data is available on the website</li>
<li>Expert technical support</li>
<li>Sample sizes available</li>
<li>100% satisfaction guarantee</li>
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			'description' => '<p>Histones are the main protein components of chromatin involved in the compaction of DNA into nucleosomes, the basic units of chromatin. A <strong>nucleosome</strong> consists of one pair of each of the core histones (<strong>H2A</strong>, <strong>H2B</strong>, <strong>H3</strong> and <strong>H4</strong>) forming an octameric structure wrapped by 146 base pairs of DNA. The different nucleosomes are linked by the linker histone<strong> H1, </strong>allowing for further condensation of chromatin.</p>
<p>The core histones have a globular structure with large unstructured N-terminal tails protruding from the nucleosome.&nbsp; They can undergo to multiple post-translational modifications (PTM), mainly at the N-terminal tails. These <strong>post-translational modifications </strong>include&nbsp; methylation, acetylation, phosphorylation, ubiquitinylation, citrullination, sumoylation, deamination and crotonylation.&nbsp; The most well characterized PTMs are <strong>methylation,</strong> <strong>acetylation and phosphorylation</strong>. Histone methylation occurs mainly on lysine (K) residues, which can be mono-, di- or tri-methylated, and on arginines (R), which can be mono-methylated and symmetrically or asymmetrically di-methylated. Histone acetylation occurs on lysines and histone phosphorylation mainly on serines (S), threonines (T) and tyrosines (Y).</p>
<p>The PTMs of the different residues are involved in numerous processes such as DNA repair, DNA replication and chromosome condensation. They influence the chromatin organization and can be positively or negatively associated with gene expression. Trimethylation of H3K4, H3K36 and H3K79, and lysine acetylation generally result in an open chromatin configuration (figure below) and are therefore associated with <strong>euchromatin</strong> and gene activation. Trimethylation of H3K9, K3K27 and H4K20, on the other hand, is enriched in <strong>heterochromatin </strong>and associated with gene silencing. The combination of different histone modifications is called the "<strong>histone code</strong>&rdquo;, analogous to the genetic code.</p>
<p><img src="https://www.diagenode.com/img/categories/antibodies/histone-marks-illustration.png" /></p>
<p>Diagenode is proud to offer a large range of antibodies against histones and histone modifications. Our&nbsp; antibodies are highly specific and have been validated in many applications, including <strong>ChIP</strong> and <strong>ChIP-seq</strong>.</p>
<p>Diagenode&rsquo;s collection includes antibodies recognizing:</p>
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<li><strong>Histone H1 variants</strong></li>
<li><strong>Histone H2A, H2A variants and histone H2A</strong> <strong>modifications</strong> (serine phosphorylation, lysine acetylation, lysine ubiquitinylation)</li>
<li><strong>Histone H2B and H2B</strong> <strong>modifications </strong>(serine phosphorylation, lysine acetylation)</li>
<li><strong>Histone H3 and H3 modifications </strong>(lysine methylation (mono-, di- and tri-methylated), lysine acetylation, serine phosphorylation, threonine phosphorylation, arginine methylation (mono-methylated, symmetrically and asymmetrically di-methylated))</li>
<li><strong>Histone H4 and H4 modifications (</strong>lysine methylation (mono-, di- and tri-methylated), lysine acetylation, arginine methylation (mono-methylated and symmetrically di-methylated), serine phosphorylation )</li>
</ul>
<p><span style="font-weight: 400;"><strong>HDAC's HAT's, HMT's and other</strong> <strong>enzymes</strong> which modify histones can be found in the category <a href="../categories/chromatin-modifying-proteins-histone-transferase">Histone modifying enzymes</a><br /></span></p>
<p><span style="font-weight: 400;"> Diagenode&rsquo;s highly validated antibodies:</span></p>
<ul>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Highly sensitive and specific</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cost-effective (requires less antibody per reaction)</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Batch-specific data is available on the website</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Expert technical support</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sample sizes available</span></li>
<li><span style="font-weight: 400;"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 100% satisfaction guarantee</span></li>
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			'description' => '<p><span style="font-weight: 400;">All Diagenode&rsquo;s antibodies are listed below. Please, use our Quick search field to find the antibody of interest by target name, application, purity.</span></p>
<p><span style="font-weight: 400;">Diagenode&rsquo;s highly validated antibodies:</span></p>
<ul>
<li>Highly sensitive and specific</li>
<li>Cost-effective (requires less antibody per reaction)</li>
<li>Batch-specific data is available on the website</li>
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<p><br />Chromatin immunoprecipitation (<b>ChIP</b>) is a technique to study the associations of proteins with the specific genomic regions in intact cells. One of the most important steps of this protocol is the immunoprecipitation of targeted protein using the antibody specifically recognizing it. The quality of antibodies used in ChIP is essential for the success of the experiment. Diagenode offers extensively validated ChIP-grade antibodies, confirmed for their specificity, and high level of performance in ChIP. Each batch is validated, and batch-specific data are available on the website.</p>
<p></p>
</div>
</div>
<p><strong>ChIP results</strong> obtained with the antibody directed against H3K4me3 (Cat. No. <a href="../p/h3k4me3-polyclonal-antibody-premium-50-ug-50-ul">C15410003</a>).&nbsp;</p>
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<div class="small-12 medium-6 large-6 columns"><img src="https://www.diagenode.com/img/product/antibodies/C15410003-fig1-ChIP.jpg" alt="" width="400" height="315" />&nbsp;</div>
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<p></p>
<p></p>
<p></p>
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<p></p>
<p>Our aim at Diagenode is to offer the largest collection of highly specific <strong>ChIP-grade antibodies</strong>. We add new antibodies monthly. Find your ChIP-grade antibody in the list below and check more information about tested applications, extensive validation data, and product information.</p>',
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			'description' => '<p style="text-align: justify;"><span>Epigenetic research tools have evolved over time from endpoint PCR to qPCR to the analyses of large sets of genome-wide sequencing data. ChIP sequencing (ChIP-seq) has now become the gold standard method for chromatin studies, given the accuracy and coverage scale of the approach over other methods. Successful ChIP-seq, however, requires a higher level of experimental accuracy and consistency in all steps of ChIP than ever before. Particularly crucial is the quality of ChIP antibodies. </span></p>',
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		'name' => 'H3K18ac Antibody (sample size)',
		'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone <strong>H3 containing the acetylated lysine 18 (H3K18ac)</strong>, using a KLH-conjugated synthetic peptide.</span></p>',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. AB-001-0024), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
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<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" width="432" height="62" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" width="432" height="82" /></p>
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<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
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</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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	'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone <strong>H3 containing the acetylated lysine 18 (H3K18ac)</strong>, using a KLH-conjugated synthetic peptide.</span></p>',
	'label1' => 'Validation Data',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. AB-001-0024), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<div class="row">
<div class="small-12 columns"><center>
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
</center></div>
<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
</div>
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<div class="row">
<div class="small-12 columns">
<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" width="432" height="62" /></p>
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<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
</div>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
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<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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	'name' => 'H3K18ac Antibody (sample size)',
	'description' => '<p><span>Polyclonal antibody raised in rabbit against the region of histone <strong>H3 containing the acetylated lysine 18 (H3K18ac)</strong>, using a KLH-conjugated synthetic peptide.</span></p>',
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig1-ChIP.jpg" alt="H3K18ac Antibody ChIP Grade" caption="false" width="278" height="211" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP assays were performed using human HeLa cells, treated with TSA, the Diagenode antibody against H3K18ac (cat. No. C15410139) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;iDeal ChIP-seq&rdquo; kit (cat. No. AB-001-0024), using sheared chromatin from 1,000,000 cells. A titration consisting of 1, 2, 5 and 10 &mu;g of antibody per ChIP experiment was analyzed. IgG (2 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers for the promoters of the active EIF4A2 and c-fos genes, used as positive controls, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2A-ChIP-seq.jpg" alt="H3K18ac Antibody ChIP-seq Grade" caption="false" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2B-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq" caption="false" /></p>
<p>C.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2C-ChIP-seq.jpg" alt="H3K18ac Antibody for ChIP-seq assay" caption="false" /></p>
<p>D.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig2D-ChIP-seq.jpg" alt="H3K18ac Antibody validated in ChIP-seq" caption="false" /></p>
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<div class="small-12 columns">
<p><small><strong> Figure 2. ChIP-seq results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> ChIP was performed as described above using 1 &mu;g of the Diagenode antibody against H3K18ac (cat. No. C15410139). The IP&rsquo;d DNA was subsequently analysed on an Illumina Genome Analyzer. Library preparation, cluster generation and sequencing were performed according to the manufacturer&rsquo;s instructions. The 36 bp tags were aligned to the human genome using the ELAND algorithm. Figure 2 shows the peak distribution along the complete human X-chromosome and a zoomin to a 600 kb region (figure 2A and B), and in two regions on chromosome 14 and 3 surrounding the c-fos and EIF4A2 positive control genes (figure 2C and D, respectively). </small></p>
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<p>A.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-a.png" caption="false" width="432" height="62" /></p>
<p>B.<img src="https://www.diagenode.com/img/product/antibodies/C15410139-cuttag-b.png" caption="false" width="432" height="82" /></p>
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<div class="small-12 columns">
<p><small><strong> Figure 3. Cut&amp;Tag results obtained with the Diagenode antibody directed against H3K18ac</strong><br /> CUT&amp;TAG (Kaya-Okur, H.S., Nat Commun 10, 1930, 2019) was performed on 50,000 K562 cells using 0.5 &micro;g of the Diagenode antibody against H3K18ac (cat. No. C15410139) and the Diagenode pA-Tn5 transposase (C01070001). The libraries were subsequently analysed on an Illumina NextSeq 500 sequencer (2x75 paired-end reads) according to the manufacturer's instructions. The tags were aligned to the human genome (hg19) using the BWA algorithm. Figure 3 shows the peak distribution in 2 genomic regions surrounding the CCT5 gene on chromosome 5 and the EIF2S3 gene on the X-chromosome (figure 3A and B, respectively).</small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig3-ELISA.jpg" alt="H3K18ac Antibody ELISA validation" caption="false" width="278" height="211" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 4. Determination of the antibody titer</strong><br /> To determine the titer of the antibody, an ELISA was performed using a serial dilution of the Diagenode antibody against H3K18ac (cat. No. C15410139). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 4), the titer of the antibody was estimated to be 1:4,300. </small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig4-Dotblot.jpg" alt="H3K18ac Antibody validated in Dot Blot" caption="false" width="278" height="259" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 5. Cross reactivity tests using the Diagenode antibody directed against H3K18ac</strong><br /> To test the cross reactivity of the Diagenode antibody against H3K18ac (cat. No. C15410139), a Dot Blot analysis was performed with peptides containing other histone modifications and the unmodified H3K18. One hundred to 0.2 pmol of the respective peptides were spotted on a membrane. The antibody was used at a dilution of 1:5,000. Figure&nbsp;5 shows a high specificity of the antibody for the modification of interest. </small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig5-Westernblot.jpg" alt="H3K18ac Antibody validated in Western Blot" caption="false" width="278" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 6. Western blot analysis using the Diagenode antibody directed against H3K18ac</strong><br /> Western blot was performed on whole cell (25 &mu;g, lane 1) and histone extracts (15 &mu;g, lane 2) from HeLa cells, and on 1 &mu;g of recombinant histone H2A, H2B, H3 and H4 (lane 3, 4, 5 and 6, respectively) using the Diagenode antibody against H3K18ac (cat. No. C15410139). The antibody was diluted 1:500 in TBS-Tween containing 5% skimmed milk. The marker (in kDa) is shown on the left. </small></p>
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<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410139-Fig6-IF.jpg" alt="H3K18ac Antibody validated in Immunofluorescence" caption="false" width="354" height="87" /></p>
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<div class="small-7 columns">
<p><small><strong> Figure 7. Immunofluorescence using the Diagenode antibody directed against H3K18ac</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K18ac (cat. No. C15410139) and with DAPI. Cells were fixed with 4% formaldehyde for 10&rsquo; and blocked with PBS/TX-100 containing 5% normal goat serum and 1% BSA. The cells were immunofluorescently labeled with the H3K18ac antibody (left) diluted 1:200 in blocking solution followed by an anti-rabbit antibody conjugated to Alexa488. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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<p>Read more:</p>
<p><a href="https://www.diagenode.com/en/categories/cutandtag">Products for CUT&amp;Tag assay</a></p>
<p><a href="https://www.diagenode.com/en/pages/cut-and-tag">Performance of Diagenode's antibodies in CUT&amp;Tag</a></p>
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Datasheet H3K18ac C15410139 DATASHEET Datasheet description	Download
Antibodies you can trust POSTER Epigenetic research tools have evolved over time from endpoint PCR to qPCR to the analyses of lar...	Download
Epigenetic Antibodies Brochure BROCHURE More than in any other immuoprecipitation assays, quality antibodies are critical tools in many e...	Download

SDS C15410139 H3K18ac Antibody US en	Download
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SDS C15410139 H3K18ac Antibody FR fr	Download