H3K27me2 polyclonal antibody

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			'name' => 'H3K27me2 polyclonal antibody ',
			'description' => '<p><span>Polyclonal antibody raised in rabbit against the histone H3, dimethylated at lysine 27 (H3K27me2), 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/C15410046_ChIP.jpg" alt="H3K27me2 Antibody ChIP Grade" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K27me2</strong><br /> ChIP assays were performed using human HeLa cells, the Diagenode antibody against H3K27me2 (cat. No. C15410046) and optimized PCR primer sets for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (cat. No. AB-Auto02-A100) on the SX-8G IP-Star Compact automated system, using sheared chromatin from 1 million cells. A titration of the antibody consisting of 1, 2, 5, and 10 &mu;g per ChIP experiment was analysed. IgG (2 &mu;g/IP) was used as negative IP control. QPCR was performed with primers for the promoter of the active GAPDH and EIF4A2 genes, used as negative controls, and for the promoter of the inactive HBB and the coding region of the inactive MYOD1 genes, used as positive controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). These results are in accordance with the observation that H3K27me2 is preferably present at silent genes. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_ELISA.jpg" alt="H3K27me2 Antibody ELISA validation" caption="false" width="288" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 2. 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 directed against H3K27me2 (cat. No. C15410046). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 2), the titer of the antibody was estimated to be 1:480,000. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_dotblot.jpg" alt="H3K27me2 Antibody validated in Dot Blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 3. Cross reactivity tests using the Diagenode antibody directed against H3K27me2</strong><br /> A Dot Blot analysis was performed to test the cross reactivity of the Diagenode antibody against H3K27me2 (cat. No. C15410046) with peptides containing other modifications of histone H3 and H4 and the unmodified sequence. One hundred to 0.2 pmol of peptide containing the respective histone modification were spotted on a membrane. The antibody was used at a dilution of 1:50,000. Figure 3 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/C15410046_WB.jpg" alt="H3K27me2 Antibody validated in Western blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Western blot analysis using the Diagenode antibody directed against H3K27me2</strong><br /> Histone extracts (15 &mu;g) from HeLa cells were analysed by Western blot using the Diagenode antibody against H3K27me2 (cat. No. C15410046) diluted 1:1,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; 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/C15410046_IF.jpg" alt="H3K27me2 Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 5. Immunofluorescence using the Diagenode antibody directed against H3K27me2</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K27me2 (cat. No. C15410046) 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 labelled with the H3K27me2 antibody (left) diluted 1:500 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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			'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. Levels of H3K27 dimethylation are higher in silent genes than in active genes suggesting that this histone modification is associated with transcriptional repression.</p>',
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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. Levels of H3K27 dimethylation are higher in silent genes than in active genes suggesting that this histone modification is associated with transcriptional repression.',
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			'type' => 'Polyclonal',
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			'classification' => 'Classic',
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<tr>
<th>Applications</th>
<th>Suggested dilution</th>
<th>References</th>
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<td>ChIP <sup>*</sup> </td>
<td>2 μg/ChIP</td>
<td>Fig 1</td>
</tr>
<tr>
<td>ELISA</td>
<td>1:1,000</td>
<td>Fig 2</td>
</tr>
<tr>
<td>Dot Blotting</td>
<td>1:50,000</td>
<td>Fig 3</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:1,000</td>
<td>Fig 4</td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:500</td>
<td>Fig 5</td>
</tr>
</tbody>
</table>

<small><sup>*</sup> Please note that the optimal antibody amount per IP should be determined by the end-user. We recommend testing 1-5 μg per IP.</small>',
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		'antibody_id' => '86',
		'name' => 'H3K27me2 polyclonal antibody ',
		'description' => '<p><span>Polyclonal antibody raised in rabbit against the histone H3, dimethylated at lysine 27 (H3K27me2), 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/C15410046_ChIP.jpg" alt="H3K27me2 Antibody ChIP Grade" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K27me2</strong><br /> ChIP assays were performed using human HeLa cells, the Diagenode antibody against H3K27me2 (cat. No. C15410046) and optimized PCR primer sets for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (cat. No. AB-Auto02-A100) on the SX-8G IP-Star Compact automated system, using sheared chromatin from 1 million cells. A titration of the antibody consisting of 1, 2, 5, and 10 &mu;g per ChIP experiment was analysed. IgG (2 &mu;g/IP) was used as negative IP control. QPCR was performed with primers for the promoter of the active GAPDH and EIF4A2 genes, used as negative controls, and for the promoter of the inactive HBB and the coding region of the inactive MYOD1 genes, used as positive controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). These results are in accordance with the observation that H3K27me2 is preferably present at silent genes. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_ELISA.jpg" alt="H3K27me2 Antibody ELISA validation" caption="false" width="288" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 2. 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 directed against H3K27me2 (cat. No. C15410046). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 2), the titer of the antibody was estimated to be 1:480,000. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_dotblot.jpg" alt="H3K27me2 Antibody validated in Dot Blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 3. Cross reactivity tests using the Diagenode antibody directed against H3K27me2</strong><br /> A Dot Blot analysis was performed to test the cross reactivity of the Diagenode antibody against H3K27me2 (cat. No. C15410046) with peptides containing other modifications of histone H3 and H4 and the unmodified sequence. One hundred to 0.2 pmol of peptide containing the respective histone modification were spotted on a membrane. The antibody was used at a dilution of 1:50,000. Figure 3 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/C15410046_WB.jpg" alt="H3K27me2 Antibody validated in Western blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Western blot analysis using the Diagenode antibody directed against H3K27me2</strong><br /> Histone extracts (15 &mu;g) from HeLa cells were analysed by Western blot using the Diagenode antibody against H3K27me2 (cat. No. C15410046) diluted 1:1,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; 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/C15410046_IF.jpg" alt="H3K27me2 Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 5. Immunofluorescence using the Diagenode antibody directed against H3K27me2</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K27me2 (cat. No. C15410046) 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 labelled with the H3K27me2 antibody (left) diluted 1:500 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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		'isotype' => '',
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<tr>
<th>Applications</th>
<th>Suggested dilution</th>
<th>References</th>
</tr>
</thead>
<tbody>
<tr>
<td>ChIP <sup>*</sup> </td>
<td>2 μg/ChIP</td>
<td>Fig 1</td>
</tr>
<tr>
<td>ELISA</td>
<td>1:1,000</td>
<td>Fig 2</td>
</tr>
<tr>
<td>Dot Blotting</td>
<td>1:50,000</td>
<td>Fig 3</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:1,000</td>
<td>Fig 4</td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:500</td>
<td>Fig 5</td>
</tr>
</tbody>
</table>

<small><sup>*</sup> Please note that the optimal antibody amount per IP should be determined by the end-user. We recommend testing 1-5 μg per IP.</small>',
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			'name' => 'H3K27me2 Antibody',
			'description' => '<p><span>Polyclonal antibody raised in rabbit against the histone H3, dimethylated at lysine 27 (<strong>H3K27me2</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/C15410046_ChIP.jpg" alt="H3K27me2 Antibody ChIP Grade" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K27me2</strong><br /> ChIP assays were performed using human HeLa cells, the Diagenode antibody against H3K27me2 (cat. No. C15410046) and optimized PCR primer sets for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (cat. No. AB-Auto02-A100) on the SX-8G IP-Star Compact automated system, using sheared chromatin from 1 million cells. A titration of the antibody consisting of 1, 2, 5, and 10 &mu;g per ChIP experiment was analysed. IgG (2 &mu;g/IP) was used as negative IP control. QPCR was performed with primers for the promoter of the active GAPDH and EIF4A2 genes, used as negative controls, and for the promoter of the inactive HBB and the coding region of the inactive MYOD1 genes, used as positive controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). These results are in accordance with the observation that H3K27me2 is preferably present at silent genes. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_ELISA.jpg" alt="H3K27me2 Antibody ELISA validation" caption="false" width="288" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 2. 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 directed against H3K27me2 (cat. No. C15410046). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 2), the titer of the antibody was estimated to be 1:480,000. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_dotblot.jpg" alt="H3K27me2 Antibody validated in Dot Blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 3. Cross reactivity tests using the Diagenode antibody directed against H3K27me2</strong><br /> A Dot Blot analysis was performed to test the cross reactivity of the Diagenode antibody against H3K27me2 (cat. No. C15410046) with peptides containing other modifications of histone H3 and H4 and the unmodified sequence. One hundred to 0.2 pmol of peptide containing the respective histone modification were spotted on a membrane. The antibody was used at a dilution of 1:50,000. Figure 3 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/C15410046_WB.jpg" alt="H3K27me2 Antibody validated in Western blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Western blot analysis using the Diagenode antibody directed against H3K27me2</strong><br /> Histone extracts (15 &mu;g) from HeLa cells were analysed by Western blot using the Diagenode antibody against H3K27me2 (cat. No. C15410046) diluted 1:1,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; 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/C15410046_IF.jpg" alt="H3K27me2 Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 5. Immunofluorescence using the Diagenode antibody directed against H3K27me2</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K27me2 (cat. No. C15410046) 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 labelled with the H3K27me2 antibody (left) diluted 1:500 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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			'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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			'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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			'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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			'meta_title' => 'Diagenode's selection of Antibodies is exclusively dedicated for Epigenetic Research | Diagenode',
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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>
</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' => 'KDM6B drives epigenetic reprogramming associated with lymphoid stromal cell early commitment and immune properties',
			'authors' => 'Sylvestre M. et al.',
			'description' => '<p><span>Mature lymphoid stromal cells (LSCs) are key organizers of immune responses within secondary lymphoid organs. Similarly, inflammation-driven tertiary lymphoid structures depend on immunofibroblasts producing lymphoid cytokines and chemokines. Recent studies have explored the origin and heterogeneity of LSC/immunofibroblasts, yet the molecular and epigenetic mechanisms involved in their commitment are still unknown. This study explored the transcriptomic and epigenetic reprogramming underlying LSC/immunofibroblast commitment. We identified the induction of lysine demethylase 6B (KDM6B) as the primary epigenetic driver of early immunofibroblast differentiation. In addition, we observed an enrichment for KDM6B gene signature in murine inflammatory fibroblasts and pathogenic stroma of patients with autoimmune diseases. Last, KDM6B was required for the acquisition of LSC/immunofibroblast functional properties, including the up-regulation of CCL2 and the resulting recruitment of monocytes. Overall, our results reveal epigenetic mechanisms that participate in the early commitment and immune properties of immunofibroblasts and support the use of epigenetic modifiers as fibroblast-targeting strategies in chronic inflammation.</span></p>',
			'date' => '2023-11-29',
			'pmid' => 'https://pubmed.ncbi.nlm.nih.gov/38019914/',
			'doi' => '10.1126/sciadv.adh2708',
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			'name' => 'Nox4 promotes endothelial differentiation through chromatin remodeling.',
			'authors' => 'Hahner  F. et al.',
			'description' => '<p>RATIONALE: Nox4 is a constitutively active NADPH oxidase that constantly produces low levels of HO. Thereby, Nox4 contributes to cell homeostasis and long-term processes, such as differentiation. The high expression of Nox4 seen in endothelial cells contrasts with the low abundance of Nox4 in stem cells, which are accordingly characterized by low levels of HO. We hypothesize that Nox4 is a major contributor to endothelial differentiation, is induced during the process of differentiation, and facilitates homeostasis of the resulting endothelial cells. OBJECTIVE: To determine the role of No&times;4 in differentiation of murine inducible pluripotent stem cells (miPSC) into endothelial cells (ECs). METHODS AND RESULTS: miPSC, generated from mouse embryonic wildtype (WT) and Nox4 fibroblasts, were differentiated into endothelial cells (miPSC-EC) by stimulation with BMP4 and VEGF. During this process, Nox4 expression increased and knockout of Nox4 prolonged the abundance of pluripotency markers, while expression of endothelial markers was delayed in differentiating Nox4-depleted iPSCs. Eventually, angiogenic capacity of iPSC-ECs is reduced in Nox4 deficient cells, indicating that an absence of Nox4 diminishes stability of the reached phenotype. As an underlying mechanism, we identified JmjD3 as a redox target of Nox4. iPSC-ECs lacking Nox4 display a lower nuclear abundance of the histone demethylase JmjD3, resulting in an increased triple methylation of histone 3 (H3K27me3), which serves as a repressive mark for several genes involved in differentiation. CONCLUSIONS: Nox4 promotes differentiation of miPSCs into ECs by oxidation of JmjD3 and subsequent demethylation of H3K27me3, which forced endothelial differentiation and stability.</p>',
			'date' => '2022-07-01',
			'pmid' => 'https://www.ncbi.nlm.nih.gov/pubmed/35810713',
			'doi' => '10.1016/j.redox.2022.102381',
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			'authors' => 'Illiano M, Conte M, Sapio L, Nebbioso A, Spina A, Altucci L, Naviglio S',
			'description' => '<p>Acute myeloid leukemia (AML) is an aggressive hematological malignancy occurring very often in older adults, with poor prognosis depending on both rapid disease progression and drug resistance occurrence. Therefore, new therapeutic approaches are demanded. Epigenetic marks play a relevant role in AML. GSKJ4 is a novel inhibitor of the histone demethylases JMJD3 and UTX. To note GSKJ4 has been recently shown to act as a potent small molecule inhibitor of the proliferation in many cancer cell types. On the other hand, forskolin, a natural cAMP raising compound, used for a long time in traditional medicine and considered safe also in recent studies, is emerging as a very interesting molecule for possible use in cancer therapy. Here, we investigate the effects of forskolin on the sensitivity of human leukemia U937 cells to GSKJ4 through flow cytometry-based assays (cell-cycle progression and cell death), cell number counting, and immunoblotting experiments. We provide evidence that forskolin markedly potentiates GSKJ4-induced antiproliferative effects by apoptotic cell death induction, accompanied by a dramatic BCL2 protein down-regulation as well as caspase 3 activation and PARP protein cleavage. Comparable effects are observed with the phosphodiesterase inhibitor IBMX and 8-Br-cAMP analogous, but not by using 8-pCPT-2'-O-Me-cAMP Epac activator. Moreover, the forskolin-induced enhancement of sensitivity to GSKJ4 is counteracted by pre-treatment with Protein Kinase A (PKA) inhibitors. Altogether, our data strongly suggest that forskolin sensitizes U937 cells to GSKJ4 inhibitor via a cAMP/PKA-mediated mechanism. Our findings provide initial evidence of anticancer activity induced by forskolin/GSKJ4 combination in leukemia cells and underline the potential for use of forskolin and GSKJ4 in the development of innovative and effective therapeutic approaches for AML treatment.</p>',
			'date' => '2018-07-20',
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			'doi' => '10.3389/fphar.2018.00792',
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			'description' => '<p>To date, it remains largely unclear to what extent chromatin machinery contributes to the susceptibility and progression of complex diseases. Here, we combine deep epigenome mapping with single-cell transcriptomics to mine for evidence of chromatin dysregulation in type 2 diabetes. We find two chromatin-state signatures that track &beta; cell dysfunction in mice and humans: ectopic activation of bivalent Polycomb-silenced domains and loss of expression at an epigenomically unique class of lineage-defining genes. &beta; cell-specific Polycomb (Eed/PRC2) loss of function in mice triggers diabetes-mimicking transcriptional signatures and highly penetrant, hyperglycemia-independent dedifferentiation, indicating that PRC2 dysregulation contributes to disease. The work provides novel resources for exploring &beta;&nbsp;cell transcriptional regulation and identifies PRC2 as necessary for long-term maintenance of &beta; cell identity. Importantly, the data suggest a two-hit (chromatin and hyperglycemia) model for loss of &beta;&nbsp;cell identity in diabetes.</p>',
			'date' => '2018-06-05',
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			'doi' => '10.1016/j.cmet.2018.04.013',
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			'description' => '<p>The molecular mechanism of epimorphic regeneration is elusive due to its complexity and limitation in mammals. Epigenetic regulatory mechanisms play a crucial role in development and regeneration. This investigation attempted to reveal the role of epigenetic regulatory mechanisms, such as histone H3 and H4 lysine acetylation and methylation during zebrafish caudal fin regeneration. It was intriguing to observe that H3K9,14 acetylation, H4K20 trimethylation, H3K4 trimethylation and H3K9 dimethylation along with their respective regulatory genes, such as <em>GCN5, SETd8b, SETD7/9</em> and <em>SUV39h1</em>, were differentially regulated in the regenerating fin at various time points of post-amputation. Annexin genes have been associated with regeneration; this study reveals the significant upregulation of <em>ANXA2a</em> and <em>ANXA2b</em> transcripts and their protein products during the regeneration process. Chromatin Immunoprecipitation (ChIP) and PCR analysis of the regulatory regions of the <em>ANXA2a</em> and <em>ANXA2b</em> genes demonstrated the ability to repress two histone methylations, H3K27me3 and H4K20me3, in transcriptional regulation during regeneration. It is hypothesized that this novel insight into the diverse epigenetic mechanisms that play a critical role during the regeneration process may help to strategize the translational efforts, in addition to identifying the molecules involved in vertebrate regeneration.</p>',
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	'name' => 'Role of Annexin gene and its regulation during zebrafish caudal fin regeneration',
	'authors' => 'Saxena S, Purushothaman S, Meghah V, Bhatti B, Poruri A, Meena Lakshmi MG, Sarath Babu N, Murthy CL, Mandal KK, Kumar A, Idris MM',
	'description' => '<p>The molecular mechanism of epimorphic regeneration is elusive due to its complexity and limitation in mammals. Epigenetic regulatory mechanisms play a crucial role in development and regeneration. This investigation attempted to reveal the role of epigenetic regulatory mechanisms, such as histone H3 and H4 lysine acetylation and methylation during zebrafish caudal fin regeneration. It was intriguing to observe that H3K9,14 acetylation, H4K20 trimethylation, H3K4 trimethylation and H3K9 dimethylation along with their respective regulatory genes, such as <em>GCN5, SETd8b, SETD7/9</em> and <em>SUV39h1</em>, were differentially regulated in the regenerating fin at various time points of post-amputation. Annexin genes have been associated with regeneration; this study reveals the significant upregulation of <em>ANXA2a</em> and <em>ANXA2b</em> transcripts and their protein products during the regeneration process. Chromatin Immunoprecipitation (ChIP) and PCR analysis of the regulatory regions of the <em>ANXA2a</em> and <em>ANXA2b</em> genes demonstrated the ability to repress two histone methylations, H3K27me3 and H4K20me3, in transcriptional regulation during regeneration. It is hypothesized that this novel insight into the diverse epigenetic mechanisms that play a critical role during the regeneration process may help to strategize the translational efforts, in addition to identifying the molecules involved in vertebrate regeneration.</p>',
	'date' => '2016-03-12',
	'pmid' => 'http://onlinelibrary.wiley.com/doi/10.1111/wrr.12429/abstract',
	'doi' => '10.1111/wrr.12429',
	'modified' => '2016-04-08 17:24:06',
	'created' => '2016-04-08 17:24:06',
	'ProductsPublication' => array(
		'id' => '790',
		'product_id' => '2207',
		'publication_id' => '2886'
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)
$externalLink = ' <a href="http://onlinelibrary.wiley.com/doi/10.1111/wrr.12429/abstract" 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

Notice (8): Undefined variable: header [APP/View/Products/view.ctp, line 755]
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K27me2</strong><br /> ChIP assays were performed using human HeLa cells, the Diagenode antibody against H3K27me2 (cat. No. C15410046) and optimized PCR primer sets for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (cat. No. AB-Auto02-A100) on the SX-8G IP-Star Compact automated system, using sheared chromatin from 1 million cells. A titration of the antibody consisting of 1, 2, 5, and 10 &mu;g per ChIP experiment was analysed. IgG (2 &mu;g/IP) was used as negative IP control. QPCR was performed with primers for the promoter of the active GAPDH and EIF4A2 genes, used as negative controls, and for the promoter of the inactive HBB and the coding region of the inactive MYOD1 genes, used as positive controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). These results are in accordance with the observation that H3K27me2 is preferably present at silent genes. </small></p>
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<p><small><strong> Figure 2. 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 directed against H3K27me2 (cat. No. C15410046). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 2), the titer of the antibody was estimated to be 1:480,000. </small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_dotblot.jpg" alt="H3K27me2 Antibody validated in Dot Blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 4. Western blot analysis using the Diagenode antibody directed against H3K27me2</strong><br /> Histone extracts (15 &mu;g) from HeLa cells were analysed by Western blot using the Diagenode antibody against H3K27me2 (cat. No. C15410046) diluted 1:1,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; the marker (in kDa) is shown on the left. </small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_IF.jpg" alt="H3K27me2 Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 5. Immunofluorescence using the Diagenode antibody directed against H3K27me2</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K27me2 (cat. No. C15410046) 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 labelled with the H3K27me2 antibody (left) diluted 1:500 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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<th>References</th>
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<td>2 μg/ChIP</td>
<td>Fig 1</td>
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<td>1:1,000</td>
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<td>Fig 3</td>
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<td>1:1,000</td>
<td>Fig 4</td>
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<td>Immunofluorescence</td>
<td>1:500</td>
<td>Fig 5</td>
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<small><sup>*</sup> Please note that the optimal antibody amount per IP should be determined by the end-user. We recommend testing 1-5 μg per IP.</small>',
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		'label1' => 'Validation Data',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_ChIP.jpg" alt="H3K27me2 Antibody ChIP Grade" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K27me2</strong><br /> ChIP assays were performed using human HeLa cells, the Diagenode antibody against H3K27me2 (cat. No. C15410046) and optimized PCR primer sets for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (cat. No. AB-Auto02-A100) on the SX-8G IP-Star Compact automated system, using sheared chromatin from 1 million cells. A titration of the antibody consisting of 1, 2, 5, and 10 &mu;g per ChIP experiment was analysed. IgG (2 &mu;g/IP) was used as negative IP control. QPCR was performed with primers for the promoter of the active GAPDH and EIF4A2 genes, used as negative controls, and for the promoter of the inactive HBB and the coding region of the inactive MYOD1 genes, used as positive controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). These results are in accordance with the observation that H3K27me2 is preferably present at silent genes. </small></p>
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<div class="small-4 columns">
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<p><small><strong> Figure 2. 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 directed against H3K27me2 (cat. No. C15410046). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 2), the titer of the antibody was estimated to be 1:480,000. </small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_dotblot.jpg" alt="H3K27me2 Antibody validated in Dot Blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 3. Cross reactivity tests using the Diagenode antibody directed against H3K27me2</strong><br /> A Dot Blot analysis was performed to test the cross reactivity of the Diagenode antibody against H3K27me2 (cat. No. C15410046) with peptides containing other modifications of histone H3 and H4 and the unmodified sequence. One hundred to 0.2 pmol of peptide containing the respective histone modification were spotted on a membrane. The antibody was used at a dilution of 1:50,000. Figure 3 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/C15410046_WB.jpg" alt="H3K27me2 Antibody validated in Western blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Western blot analysis using the Diagenode antibody directed against H3K27me2</strong><br /> Histone extracts (15 &mu;g) from HeLa cells were analysed by Western blot using the Diagenode antibody against H3K27me2 (cat. No. C15410046) diluted 1:1,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; the marker (in kDa) is shown on the left. </small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_IF.jpg" alt="H3K27me2 Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<div class="small-7 columns">
<p><small><strong> Figure 5. Immunofluorescence using the Diagenode antibody directed against H3K27me2</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K27me2 (cat. No. C15410046) 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 labelled with the H3K27me2 antibody (left) diluted 1:500 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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<th>References</th>
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<td>2 μg/ChIP</td>
<td>Fig 1</td>
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<td>1:1,000</td>
<td>Fig 2</td>
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<td>Dot Blotting</td>
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<td>Fig 3</td>
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<td>Western Blotting</td>
<td>1:1,000</td>
<td>Fig 4</td>
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<td>1:500</td>
<td>Fig 5</td>
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<small><sup>*</sup> Please note that the optimal antibody amount per IP should be determined by the end-user. We recommend testing 1-5 μg per IP.</small>',
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		'select_label' => '86 - H3K27me2 polyclonal antibody (A1968-0024P - 2.63 &micro;g/&micro;l - Human, zebrafish - Affinity purified - Rabbit)'
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			'antibody_id' => '86',
			'name' => 'H3K27me2 Antibody',
			'description' => '<p><span>Polyclonal antibody raised in rabbit against the histone H3, dimethylated at lysine 27 (<strong>H3K27me2</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/C15410046_ChIP.jpg" alt="H3K27me2 Antibody ChIP Grade" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K27me2</strong><br /> ChIP assays were performed using human HeLa cells, the Diagenode antibody against H3K27me2 (cat. No. C15410046) and optimized PCR primer sets for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (cat. No. AB-Auto02-A100) on the SX-8G IP-Star Compact automated system, using sheared chromatin from 1 million cells. A titration of the antibody consisting of 1, 2, 5, and 10 &mu;g per ChIP experiment was analysed. IgG (2 &mu;g/IP) was used as negative IP control. QPCR was performed with primers for the promoter of the active GAPDH and EIF4A2 genes, used as negative controls, and for the promoter of the inactive HBB and the coding region of the inactive MYOD1 genes, used as positive controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). These results are in accordance with the observation that H3K27me2 is preferably present at silent genes. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_ELISA.jpg" alt="H3K27me2 Antibody ELISA validation" caption="false" width="288" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 2. 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 directed against H3K27me2 (cat. No. C15410046). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 2), the titer of the antibody was estimated to be 1:480,000. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_dotblot.jpg" alt="H3K27me2 Antibody validated in Dot Blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 3. Cross reactivity tests using the Diagenode antibody directed against H3K27me2</strong><br /> A Dot Blot analysis was performed to test the cross reactivity of the Diagenode antibody against H3K27me2 (cat. No. C15410046) with peptides containing other modifications of histone H3 and H4 and the unmodified sequence. One hundred to 0.2 pmol of peptide containing the respective histone modification were spotted on a membrane. The antibody was used at a dilution of 1:50,000. Figure 3 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/C15410046_WB.jpg" alt="H3K27me2 Antibody validated in Western blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Western blot analysis using the Diagenode antibody directed against H3K27me2</strong><br /> Histone extracts (15 &mu;g) from HeLa cells were analysed by Western blot using the Diagenode antibody against H3K27me2 (cat. No. C15410046) diluted 1:1,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; 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/C15410046_IF.jpg" alt="H3K27me2 Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 5. Immunofluorescence using the Diagenode antibody directed against H3K27me2</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K27me2 (cat. No. C15410046) 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 labelled with the H3K27me2 antibody (left) diluted 1:500 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. Levels of H3K27 dimethylation are higher in silent genes than in active genes suggesting that this histone modification is associated with transcriptional repression.</p>',
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			'sf_code' => 'C15410046-D001-000581',
			'type' => 'FRE',
			'search_order' => '03-Antibody',
			'price_EUR' => '380',
			'price_USD' => '380',
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			'price_JPY' => '59525',
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			'meta_description' => 'H3K27me2 (Histone H3 dimethylated at lysine 27) Polyclonal Antibody validated  in ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
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<div class="small-12 medium-12 large-12 columns">Enzyme-linked immunosorbent assay.</div>
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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',
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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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			'meta_description' => 'Diagenode offers a wide range of antibodies and technical support for Immunofluorescence applications',
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			'slug' => 'chip-qpcr-antibodies',
			'meta_keywords' => 'Chromatin Immunoprecipitation Sequencing,ChIP-Seq,ChIP-seq grade antibodies,DNA purification,qPCR,Shearing of chromatin',
			'meta_description' => 'Diagenode offers a wide range of antibodies and technical support for ChIP-qPCR applications',
			'meta_title' => 'ChIP Quantitative PCR  Antibodies (ChIP-qPCR) | Diagenode',
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			'id' => '111',
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			'parent_id' => '4',
			'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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			'meta_description' => 'Polyclonal and Monoclonal Antibodies against Histones and their modifications validated for many applications, including Chromatin Immunoprecipitation (ChIP) and ChIP-Sequencing (ChIP-seq)',
			'meta_title' => 'Histone and Modified Histone Antibodies | Diagenode',
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			'name' => 'All antibodies',
			'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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			'meta_description' => 'Diagenode Offers Strict quality standards with Rigorous QC and validated Antibodies. Classified based on level of validation for flexibility of Application. Comprehensive selection of histone and non-histone Antibodies',
			'meta_title' => 'Diagenode's selection of Antibodies is exclusively dedicated for Epigenetic Research | Diagenode',
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			'name' => 'ChIP-grade antibodies',
			'description' => '<div class="row">
<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>
</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>
<div class="row">
<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>
<div class="small-12 medium-6 large-6 columns">
<p></p>
<p></p>
<p></p>
</div>
</div>
<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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			'meta_description' => 'Diagenode Offers Extensively Validated ChIP-Grade Antibodies, Confirmed for their Specificity, and high level of Performance in Chromatin Immunoprecipitation ChIP',
			'meta_title' => 'Chromatin immunoprecipitation ChIP-grade antibodies | Diagenode',
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			'name' => 'Datasheet H3K27me2 pAb-046-050',
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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>More than in any other immuoprecipitation assays, quality antibodies are critical tools in many epigenetics experiments. Since 10 years, Diagenode has developed the most stringent quality production available on the market for antibodies exclusively focused on epigenetic uses. All our antibodies have been qualified to work in epigenetic applications.</p>',
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			'name' => 'KDM6B drives epigenetic reprogramming associated with lymphoid stromal cell early commitment and immune properties',
			'authors' => 'Sylvestre M. et al.',
			'description' => '<p><span>Mature lymphoid stromal cells (LSCs) are key organizers of immune responses within secondary lymphoid organs. Similarly, inflammation-driven tertiary lymphoid structures depend on immunofibroblasts producing lymphoid cytokines and chemokines. Recent studies have explored the origin and heterogeneity of LSC/immunofibroblasts, yet the molecular and epigenetic mechanisms involved in their commitment are still unknown. This study explored the transcriptomic and epigenetic reprogramming underlying LSC/immunofibroblast commitment. We identified the induction of lysine demethylase 6B (KDM6B) as the primary epigenetic driver of early immunofibroblast differentiation. In addition, we observed an enrichment for KDM6B gene signature in murine inflammatory fibroblasts and pathogenic stroma of patients with autoimmune diseases. Last, KDM6B was required for the acquisition of LSC/immunofibroblast functional properties, including the up-regulation of CCL2 and the resulting recruitment of monocytes. Overall, our results reveal epigenetic mechanisms that participate in the early commitment and immune properties of immunofibroblasts and support the use of epigenetic modifiers as fibroblast-targeting strategies in chronic inflammation.</span></p>',
			'date' => '2023-11-29',
			'pmid' => 'https://pubmed.ncbi.nlm.nih.gov/38019914/',
			'doi' => '10.1126/sciadv.adh2708',
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			'name' => 'Nox4 promotes endothelial differentiation through chromatin remodeling.',
			'authors' => 'Hahner  F. et al.',
			'description' => '<p>RATIONALE: Nox4 is a constitutively active NADPH oxidase that constantly produces low levels of HO. Thereby, Nox4 contributes to cell homeostasis and long-term processes, such as differentiation. The high expression of Nox4 seen in endothelial cells contrasts with the low abundance of Nox4 in stem cells, which are accordingly characterized by low levels of HO. We hypothesize that Nox4 is a major contributor to endothelial differentiation, is induced during the process of differentiation, and facilitates homeostasis of the resulting endothelial cells. OBJECTIVE: To determine the role of No&times;4 in differentiation of murine inducible pluripotent stem cells (miPSC) into endothelial cells (ECs). METHODS AND RESULTS: miPSC, generated from mouse embryonic wildtype (WT) and Nox4 fibroblasts, were differentiated into endothelial cells (miPSC-EC) by stimulation with BMP4 and VEGF. During this process, Nox4 expression increased and knockout of Nox4 prolonged the abundance of pluripotency markers, while expression of endothelial markers was delayed in differentiating Nox4-depleted iPSCs. Eventually, angiogenic capacity of iPSC-ECs is reduced in Nox4 deficient cells, indicating that an absence of Nox4 diminishes stability of the reached phenotype. As an underlying mechanism, we identified JmjD3 as a redox target of Nox4. iPSC-ECs lacking Nox4 display a lower nuclear abundance of the histone demethylase JmjD3, resulting in an increased triple methylation of histone 3 (H3K27me3), which serves as a repressive mark for several genes involved in differentiation. CONCLUSIONS: Nox4 promotes differentiation of miPSCs into ECs by oxidation of JmjD3 and subsequent demethylation of H3K27me3, which forced endothelial differentiation and stability.</p>',
			'date' => '2022-07-01',
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			'name' => 'Forskolin Sensitizes Human Acute Myeloid Leukemia Cells to H3K27me2/3 Demethylases GSKJ4 Inhibitor via Protein Kinase A.',
			'authors' => 'Illiano M, Conte M, Sapio L, Nebbioso A, Spina A, Altucci L, Naviglio S',
			'description' => '<p>Acute myeloid leukemia (AML) is an aggressive hematological malignancy occurring very often in older adults, with poor prognosis depending on both rapid disease progression and drug resistance occurrence. Therefore, new therapeutic approaches are demanded. Epigenetic marks play a relevant role in AML. GSKJ4 is a novel inhibitor of the histone demethylases JMJD3 and UTX. To note GSKJ4 has been recently shown to act as a potent small molecule inhibitor of the proliferation in many cancer cell types. On the other hand, forskolin, a natural cAMP raising compound, used for a long time in traditional medicine and considered safe also in recent studies, is emerging as a very interesting molecule for possible use in cancer therapy. Here, we investigate the effects of forskolin on the sensitivity of human leukemia U937 cells to GSKJ4 through flow cytometry-based assays (cell-cycle progression and cell death), cell number counting, and immunoblotting experiments. We provide evidence that forskolin markedly potentiates GSKJ4-induced antiproliferative effects by apoptotic cell death induction, accompanied by a dramatic BCL2 protein down-regulation as well as caspase 3 activation and PARP protein cleavage. Comparable effects are observed with the phosphodiesterase inhibitor IBMX and 8-Br-cAMP analogous, but not by using 8-pCPT-2'-O-Me-cAMP Epac activator. Moreover, the forskolin-induced enhancement of sensitivity to GSKJ4 is counteracted by pre-treatment with Protein Kinase A (PKA) inhibitors. Altogether, our data strongly suggest that forskolin sensitizes U937 cells to GSKJ4 inhibitor via a cAMP/PKA-mediated mechanism. Our findings provide initial evidence of anticancer activity induced by forskolin/GSKJ4 combination in leukemia cells and underline the potential for use of forskolin and GSKJ4 in the development of innovative and effective therapeutic approaches for AML treatment.</p>',
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			'description' => '<p>To date, it remains largely unclear to what extent chromatin machinery contributes to the susceptibility and progression of complex diseases. Here, we combine deep epigenome mapping with single-cell transcriptomics to mine for evidence of chromatin dysregulation in type 2 diabetes. We find two chromatin-state signatures that track &beta; cell dysfunction in mice and humans: ectopic activation of bivalent Polycomb-silenced domains and loss of expression at an epigenomically unique class of lineage-defining genes. &beta; cell-specific Polycomb (Eed/PRC2) loss of function in mice triggers diabetes-mimicking transcriptional signatures and highly penetrant, hyperglycemia-independent dedifferentiation, indicating that PRC2 dysregulation contributes to disease. The work provides novel resources for exploring &beta;&nbsp;cell transcriptional regulation and identifies PRC2 as necessary for long-term maintenance of &beta; cell identity. Importantly, the data suggest a two-hit (chromatin and hyperglycemia) model for loss of &beta;&nbsp;cell identity in diabetes.</p>',
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			'description' => '<p>The molecular mechanism of epimorphic regeneration is elusive due to its complexity and limitation in mammals. Epigenetic regulatory mechanisms play a crucial role in development and regeneration. This investigation attempted to reveal the role of epigenetic regulatory mechanisms, such as histone H3 and H4 lysine acetylation and methylation during zebrafish caudal fin regeneration. It was intriguing to observe that H3K9,14 acetylation, H4K20 trimethylation, H3K4 trimethylation and H3K9 dimethylation along with their respective regulatory genes, such as <em>GCN5, SETd8b, SETD7/9</em> and <em>SUV39h1</em>, were differentially regulated in the regenerating fin at various time points of post-amputation. Annexin genes have been associated with regeneration; this study reveals the significant upregulation of <em>ANXA2a</em> and <em>ANXA2b</em> transcripts and their protein products during the regeneration process. Chromatin Immunoprecipitation (ChIP) and PCR analysis of the regulatory regions of the <em>ANXA2a</em> and <em>ANXA2b</em> genes demonstrated the ability to repress two histone methylations, H3K27me3 and H4K20me3, in transcriptional regulation during regeneration. It is hypothesized that this novel insight into the diverse epigenetic mechanisms that play a critical role during the regeneration process may help to strategize the translational efforts, in addition to identifying the molecules involved in vertebrate regeneration.</p>',
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	'authors' => 'Saxena S, Purushothaman S, Meghah V, Bhatti B, Poruri A, Meena Lakshmi MG, Sarath Babu N, Murthy CL, Mandal KK, Kumar A, Idris MM',
	'description' => '<p>The molecular mechanism of epimorphic regeneration is elusive due to its complexity and limitation in mammals. Epigenetic regulatory mechanisms play a crucial role in development and regeneration. This investigation attempted to reveal the role of epigenetic regulatory mechanisms, such as histone H3 and H4 lysine acetylation and methylation during zebrafish caudal fin regeneration. It was intriguing to observe that H3K9,14 acetylation, H4K20 trimethylation, H3K4 trimethylation and H3K9 dimethylation along with their respective regulatory genes, such as <em>GCN5, SETd8b, SETD7/9</em> and <em>SUV39h1</em>, were differentially regulated in the regenerating fin at various time points of post-amputation. Annexin genes have been associated with regeneration; this study reveals the significant upregulation of <em>ANXA2a</em> and <em>ANXA2b</em> transcripts and their protein products during the regeneration process. Chromatin Immunoprecipitation (ChIP) and PCR analysis of the regulatory regions of the <em>ANXA2a</em> and <em>ANXA2b</em> genes demonstrated the ability to repress two histone methylations, H3K27me3 and H4K20me3, in transcriptional regulation during regeneration. It is hypothesized that this novel insight into the diverse epigenetic mechanisms that play a critical role during the regeneration process may help to strategize the translational efforts, in addition to identifying the molecules involved in vertebrate regeneration.</p>',
	'date' => '2016-03-12',
	'pmid' => 'http://onlinelibrary.wiley.com/doi/10.1111/wrr.12429/abstract',
	'doi' => '10.1111/wrr.12429',
	'modified' => '2016-04-08 17:24:06',
	'created' => '2016-04-08 17:24:06',
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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

Notice (8): Undefined variable: message [APP/View/Products/view.ctp, line 755]
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			'name' => 'H3K27me2 polyclonal antibody ',
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K27me2</strong><br /> ChIP assays were performed using human HeLa cells, the Diagenode antibody against H3K27me2 (cat. No. C15410046) and optimized PCR primer sets for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (cat. No. AB-Auto02-A100) on the SX-8G IP-Star Compact automated system, using sheared chromatin from 1 million cells. A titration of the antibody consisting of 1, 2, 5, and 10 &mu;g per ChIP experiment was analysed. IgG (2 &mu;g/IP) was used as negative IP control. QPCR was performed with primers for the promoter of the active GAPDH and EIF4A2 genes, used as negative controls, and for the promoter of the inactive HBB and the coding region of the inactive MYOD1 genes, used as positive controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). These results are in accordance with the observation that H3K27me2 is preferably present at silent genes. </small></p>
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<p><small><strong> Figure 2. 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 directed against H3K27me2 (cat. No. C15410046). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 2), the titer of the antibody was estimated to be 1:480,000. </small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_dotblot.jpg" alt="H3K27me2 Antibody validated in Dot Blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 4. Western blot analysis using the Diagenode antibody directed against H3K27me2</strong><br /> Histone extracts (15 &mu;g) from HeLa cells were analysed by Western blot using the Diagenode antibody against H3K27me2 (cat. No. C15410046) diluted 1:1,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; the marker (in kDa) is shown on the left. </small></p>
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<p><small><strong> Figure 5. Immunofluorescence using the Diagenode antibody directed against H3K27me2</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K27me2 (cat. No. C15410046) 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 labelled with the H3K27me2 antibody (left) diluted 1:500 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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<th>Suggested dilution</th>
<th>References</th>
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<tr>
<td>ChIP <sup>*</sup> </td>
<td>2 μg/ChIP</td>
<td>Fig 1</td>
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<tr>
<td>ELISA</td>
<td>1:1,000</td>
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<tr>
<td>Dot Blotting</td>
<td>1:50,000</td>
<td>Fig 3</td>
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<tr>
<td>Western Blotting</td>
<td>1:1,000</td>
<td>Fig 4</td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:500</td>
<td>Fig 5</td>
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<small><sup>*</sup> Please note that the optimal antibody amount per IP should be determined by the end-user. We recommend testing 1-5 μg per IP.</small>',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_ChIP.jpg" alt="H3K27me2 Antibody ChIP Grade" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K27me2</strong><br /> ChIP assays were performed using human HeLa cells, the Diagenode antibody against H3K27me2 (cat. No. C15410046) and optimized PCR primer sets for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (cat. No. AB-Auto02-A100) on the SX-8G IP-Star Compact automated system, using sheared chromatin from 1 million cells. A titration of the antibody consisting of 1, 2, 5, and 10 &mu;g per ChIP experiment was analysed. IgG (2 &mu;g/IP) was used as negative IP control. QPCR was performed with primers for the promoter of the active GAPDH and EIF4A2 genes, used as negative controls, and for the promoter of the inactive HBB and the coding region of the inactive MYOD1 genes, used as positive controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). These results are in accordance with the observation that H3K27me2 is preferably present at silent genes. </small></p>
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<p><small><strong> Figure 2. 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 directed against H3K27me2 (cat. No. C15410046). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 2), the titer of the antibody was estimated to be 1:480,000. </small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_dotblot.jpg" alt="H3K27me2 Antibody validated in Dot Blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 3. Cross reactivity tests using the Diagenode antibody directed against H3K27me2</strong><br /> A Dot Blot analysis was performed to test the cross reactivity of the Diagenode antibody against H3K27me2 (cat. No. C15410046) with peptides containing other modifications of histone H3 and H4 and the unmodified sequence. One hundred to 0.2 pmol of peptide containing the respective histone modification were spotted on a membrane. The antibody was used at a dilution of 1:50,000. Figure 3 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/C15410046_WB.jpg" alt="H3K27me2 Antibody validated in Western blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 4. Western blot analysis using the Diagenode antibody directed against H3K27me2</strong><br /> Histone extracts (15 &mu;g) from HeLa cells were analysed by Western blot using the Diagenode antibody against H3K27me2 (cat. No. C15410046) diluted 1:1,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; the marker (in kDa) is shown on the left. </small></p>
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<div class="small-7 columns">
<p><small><strong> Figure 5. Immunofluorescence using the Diagenode antibody directed against H3K27me2</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K27me2 (cat. No. C15410046) 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 labelled with the H3K27me2 antibody (left) diluted 1:500 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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<th>Suggested dilution</th>
<th>References</th>
</tr>
</thead>
<tbody>
<tr>
<td>ChIP <sup>*</sup> </td>
<td>2 μg/ChIP</td>
<td>Fig 1</td>
</tr>
<tr>
<td>ELISA</td>
<td>1:1,000</td>
<td>Fig 2</td>
</tr>
<tr>
<td>Dot Blotting</td>
<td>1:50,000</td>
<td>Fig 3</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:1,000</td>
<td>Fig 4</td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:500</td>
<td>Fig 5</td>
</tr>
</tbody>
</table>

<small><sup>*</sup> Please note that the optimal antibody amount per IP should be determined by the end-user. We recommend testing 1-5 μg per IP.</small>',
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		'precautions' => 'This product is for research use only. Not for use in diagnostic or therapeutic procedures.',
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		'modified' => '2016-08-03 10:55:24',
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		'select_label' => '86 - H3K27me2 polyclonal antibody (A1968-0024P - 2.63 &micro;g/&micro;l - Human, zebrafish - Affinity purified - Rabbit)'
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			'antibody_id' => '86',
			'name' => 'H3K27me2 Antibody',
			'description' => '<p><span>Polyclonal antibody raised in rabbit against the histone H3, dimethylated at lysine 27 (<strong>H3K27me2</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/C15410046_ChIP.jpg" alt="H3K27me2 Antibody ChIP Grade" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K27me2</strong><br /> ChIP assays were performed using human HeLa cells, the Diagenode antibody against H3K27me2 (cat. No. C15410046) and optimized PCR primer sets for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (cat. No. AB-Auto02-A100) on the SX-8G IP-Star Compact automated system, using sheared chromatin from 1 million cells. A titration of the antibody consisting of 1, 2, 5, and 10 &mu;g per ChIP experiment was analysed. IgG (2 &mu;g/IP) was used as negative IP control. QPCR was performed with primers for the promoter of the active GAPDH and EIF4A2 genes, used as negative controls, and for the promoter of the inactive HBB and the coding region of the inactive MYOD1 genes, used as positive controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). These results are in accordance with the observation that H3K27me2 is preferably present at silent genes. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_ELISA.jpg" alt="H3K27me2 Antibody ELISA validation" caption="false" width="288" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 2. 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 directed against H3K27me2 (cat. No. C15410046). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 2), the titer of the antibody was estimated to be 1:480,000. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_dotblot.jpg" alt="H3K27me2 Antibody validated in Dot Blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 3. Cross reactivity tests using the Diagenode antibody directed against H3K27me2</strong><br /> A Dot Blot analysis was performed to test the cross reactivity of the Diagenode antibody against H3K27me2 (cat. No. C15410046) with peptides containing other modifications of histone H3 and H4 and the unmodified sequence. One hundred to 0.2 pmol of peptide containing the respective histone modification were spotted on a membrane. The antibody was used at a dilution of 1:50,000. Figure 3 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/C15410046_WB.jpg" alt="H3K27me2 Antibody validated in Western blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Western blot analysis using the Diagenode antibody directed against H3K27me2</strong><br /> Histone extracts (15 &mu;g) from HeLa cells were analysed by Western blot using the Diagenode antibody against H3K27me2 (cat. No. C15410046) diluted 1:1,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; 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/C15410046_IF.jpg" alt="H3K27me2 Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 5. Immunofluorescence using the Diagenode antibody directed against H3K27me2</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K27me2 (cat. No. C15410046) 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 labelled with the H3K27me2 antibody (left) diluted 1:500 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. Levels of H3K27 dimethylation are higher in silent genes than in active genes suggesting that this histone modification is associated with transcriptional repression.</p>',
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			'type' => 'FRE',
			'search_order' => '03-Antibody',
			'price_EUR' => '380',
			'price_USD' => '380',
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			'meta_description' => 'H3K27me2 (Histone H3 dimethylated at lysine 27) Polyclonal Antibody validated  in ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
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<div class="small-12 medium-12 large-12 columns">Enzyme-linked immunosorbent assay.</div>
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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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			'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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			'slug' => 'chip-qpcr-antibodies',
			'meta_keywords' => 'Chromatin Immunoprecipitation Sequencing,ChIP-Seq,ChIP-seq grade antibodies,DNA purification,qPCR,Shearing of chromatin',
			'meta_description' => 'Diagenode offers a wide range of antibodies and technical support for ChIP-qPCR applications',
			'meta_title' => 'ChIP Quantitative PCR  Antibodies (ChIP-qPCR) | Diagenode',
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			'id' => '111',
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			'parent_id' => '4',
			'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>
</ul>',
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			'meta_description' => 'Polyclonal and Monoclonal Antibodies against Histones and their modifications validated for many applications, including Chromatin Immunoprecipitation (ChIP) and ChIP-Sequencing (ChIP-seq)',
			'meta_title' => 'Histone and Modified Histone Antibodies | Diagenode',
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			'name' => 'All antibodies',
			'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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			'meta_description' => 'Diagenode Offers Strict quality standards with Rigorous QC and validated Antibodies. Classified based on level of validation for flexibility of Application. Comprehensive selection of histone and non-histone Antibodies',
			'meta_title' => 'Diagenode's selection of Antibodies is exclusively dedicated for Epigenetic Research | Diagenode',
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			'name' => 'ChIP-grade antibodies',
			'description' => '<div class="row">
<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>
</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>
<div class="row">
<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>
<div class="small-12 medium-6 large-6 columns">
<p></p>
<p></p>
<p></p>
</div>
</div>
<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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			'meta_description' => 'Diagenode Offers Extensively Validated ChIP-Grade Antibodies, Confirmed for their Specificity, and high level of Performance in Chromatin Immunoprecipitation ChIP',
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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' => 'Epigenetic Antibodies Brochure',
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			'name' => 'KDM6B drives epigenetic reprogramming associated with lymphoid stromal cell early commitment and immune properties',
			'authors' => 'Sylvestre M. et al.',
			'description' => '<p><span>Mature lymphoid stromal cells (LSCs) are key organizers of immune responses within secondary lymphoid organs. Similarly, inflammation-driven tertiary lymphoid structures depend on immunofibroblasts producing lymphoid cytokines and chemokines. Recent studies have explored the origin and heterogeneity of LSC/immunofibroblasts, yet the molecular and epigenetic mechanisms involved in their commitment are still unknown. This study explored the transcriptomic and epigenetic reprogramming underlying LSC/immunofibroblast commitment. We identified the induction of lysine demethylase 6B (KDM6B) as the primary epigenetic driver of early immunofibroblast differentiation. In addition, we observed an enrichment for KDM6B gene signature in murine inflammatory fibroblasts and pathogenic stroma of patients with autoimmune diseases. Last, KDM6B was required for the acquisition of LSC/immunofibroblast functional properties, including the up-regulation of CCL2 and the resulting recruitment of monocytes. Overall, our results reveal epigenetic mechanisms that participate in the early commitment and immune properties of immunofibroblasts and support the use of epigenetic modifiers as fibroblast-targeting strategies in chronic inflammation.</span></p>',
			'date' => '2023-11-29',
			'pmid' => 'https://pubmed.ncbi.nlm.nih.gov/38019914/',
			'doi' => '10.1126/sciadv.adh2708',
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			'name' => 'Nox4 promotes endothelial differentiation through chromatin remodeling.',
			'authors' => 'Hahner  F. et al.',
			'description' => '<p>RATIONALE: Nox4 is a constitutively active NADPH oxidase that constantly produces low levels of HO. Thereby, Nox4 contributes to cell homeostasis and long-term processes, such as differentiation. The high expression of Nox4 seen in endothelial cells contrasts with the low abundance of Nox4 in stem cells, which are accordingly characterized by low levels of HO. We hypothesize that Nox4 is a major contributor to endothelial differentiation, is induced during the process of differentiation, and facilitates homeostasis of the resulting endothelial cells. OBJECTIVE: To determine the role of No&times;4 in differentiation of murine inducible pluripotent stem cells (miPSC) into endothelial cells (ECs). METHODS AND RESULTS: miPSC, generated from mouse embryonic wildtype (WT) and Nox4 fibroblasts, were differentiated into endothelial cells (miPSC-EC) by stimulation with BMP4 and VEGF. During this process, Nox4 expression increased and knockout of Nox4 prolonged the abundance of pluripotency markers, while expression of endothelial markers was delayed in differentiating Nox4-depleted iPSCs. Eventually, angiogenic capacity of iPSC-ECs is reduced in Nox4 deficient cells, indicating that an absence of Nox4 diminishes stability of the reached phenotype. As an underlying mechanism, we identified JmjD3 as a redox target of Nox4. iPSC-ECs lacking Nox4 display a lower nuclear abundance of the histone demethylase JmjD3, resulting in an increased triple methylation of histone 3 (H3K27me3), which serves as a repressive mark for several genes involved in differentiation. CONCLUSIONS: Nox4 promotes differentiation of miPSCs into ECs by oxidation of JmjD3 and subsequent demethylation of H3K27me3, which forced endothelial differentiation and stability.</p>',
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			'pmid' => 'https://www.ncbi.nlm.nih.gov/pubmed/35810713',
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			'name' => 'Forskolin Sensitizes Human Acute Myeloid Leukemia Cells to H3K27me2/3 Demethylases GSKJ4 Inhibitor via Protein Kinase A.',
			'authors' => 'Illiano M, Conte M, Sapio L, Nebbioso A, Spina A, Altucci L, Naviglio S',
			'description' => '<p>Acute myeloid leukemia (AML) is an aggressive hematological malignancy occurring very often in older adults, with poor prognosis depending on both rapid disease progression and drug resistance occurrence. Therefore, new therapeutic approaches are demanded. Epigenetic marks play a relevant role in AML. GSKJ4 is a novel inhibitor of the histone demethylases JMJD3 and UTX. To note GSKJ4 has been recently shown to act as a potent small molecule inhibitor of the proliferation in many cancer cell types. On the other hand, forskolin, a natural cAMP raising compound, used for a long time in traditional medicine and considered safe also in recent studies, is emerging as a very interesting molecule for possible use in cancer therapy. Here, we investigate the effects of forskolin on the sensitivity of human leukemia U937 cells to GSKJ4 through flow cytometry-based assays (cell-cycle progression and cell death), cell number counting, and immunoblotting experiments. We provide evidence that forskolin markedly potentiates GSKJ4-induced antiproliferative effects by apoptotic cell death induction, accompanied by a dramatic BCL2 protein down-regulation as well as caspase 3 activation and PARP protein cleavage. Comparable effects are observed with the phosphodiesterase inhibitor IBMX and 8-Br-cAMP analogous, but not by using 8-pCPT-2'-O-Me-cAMP Epac activator. Moreover, the forskolin-induced enhancement of sensitivity to GSKJ4 is counteracted by pre-treatment with Protein Kinase A (PKA) inhibitors. Altogether, our data strongly suggest that forskolin sensitizes U937 cells to GSKJ4 inhibitor via a cAMP/PKA-mediated mechanism. Our findings provide initial evidence of anticancer activity induced by forskolin/GSKJ4 combination in leukemia cells and underline the potential for use of forskolin and GSKJ4 in the development of innovative and effective therapeutic approaches for AML treatment.</p>',
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			'description' => '<p>To date, it remains largely unclear to what extent chromatin machinery contributes to the susceptibility and progression of complex diseases. Here, we combine deep epigenome mapping with single-cell transcriptomics to mine for evidence of chromatin dysregulation in type 2 diabetes. We find two chromatin-state signatures that track &beta; cell dysfunction in mice and humans: ectopic activation of bivalent Polycomb-silenced domains and loss of expression at an epigenomically unique class of lineage-defining genes. &beta; cell-specific Polycomb (Eed/PRC2) loss of function in mice triggers diabetes-mimicking transcriptional signatures and highly penetrant, hyperglycemia-independent dedifferentiation, indicating that PRC2 dysregulation contributes to disease. The work provides novel resources for exploring &beta;&nbsp;cell transcriptional regulation and identifies PRC2 as necessary for long-term maintenance of &beta; cell identity. Importantly, the data suggest a two-hit (chromatin and hyperglycemia) model for loss of &beta;&nbsp;cell identity in diabetes.</p>',
			'date' => '2018-06-05',
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			'description' => '<p>The molecular mechanism of epimorphic regeneration is elusive due to its complexity and limitation in mammals. Epigenetic regulatory mechanisms play a crucial role in development and regeneration. This investigation attempted to reveal the role of epigenetic regulatory mechanisms, such as histone H3 and H4 lysine acetylation and methylation during zebrafish caudal fin regeneration. It was intriguing to observe that H3K9,14 acetylation, H4K20 trimethylation, H3K4 trimethylation and H3K9 dimethylation along with their respective regulatory genes, such as <em>GCN5, SETd8b, SETD7/9</em> and <em>SUV39h1</em>, were differentially regulated in the regenerating fin at various time points of post-amputation. Annexin genes have been associated with regeneration; this study reveals the significant upregulation of <em>ANXA2a</em> and <em>ANXA2b</em> transcripts and their protein products during the regeneration process. Chromatin Immunoprecipitation (ChIP) and PCR analysis of the regulatory regions of the <em>ANXA2a</em> and <em>ANXA2b</em> genes demonstrated the ability to repress two histone methylations, H3K27me3 and H4K20me3, in transcriptional regulation during regeneration. It is hypothesized that this novel insight into the diverse epigenetic mechanisms that play a critical role during the regeneration process may help to strategize the translational efforts, in addition to identifying the molecules involved in vertebrate regeneration.</p>',
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	'authors' => 'Saxena S, Purushothaman S, Meghah V, Bhatti B, Poruri A, Meena Lakshmi MG, Sarath Babu N, Murthy CL, Mandal KK, Kumar A, Idris MM',
	'description' => '<p>The molecular mechanism of epimorphic regeneration is elusive due to its complexity and limitation in mammals. Epigenetic regulatory mechanisms play a crucial role in development and regeneration. This investigation attempted to reveal the role of epigenetic regulatory mechanisms, such as histone H3 and H4 lysine acetylation and methylation during zebrafish caudal fin regeneration. It was intriguing to observe that H3K9,14 acetylation, H4K20 trimethylation, H3K4 trimethylation and H3K9 dimethylation along with their respective regulatory genes, such as <em>GCN5, SETd8b, SETD7/9</em> and <em>SUV39h1</em>, were differentially regulated in the regenerating fin at various time points of post-amputation. Annexin genes have been associated with regeneration; this study reveals the significant upregulation of <em>ANXA2a</em> and <em>ANXA2b</em> transcripts and their protein products during the regeneration process. Chromatin Immunoprecipitation (ChIP) and PCR analysis of the regulatory regions of the <em>ANXA2a</em> and <em>ANXA2b</em> genes demonstrated the ability to repress two histone methylations, H3K27me3 and H4K20me3, in transcriptional regulation during regeneration. It is hypothesized that this novel insight into the diverse epigenetic mechanisms that play a critical role during the regeneration process may help to strategize the translational efforts, in addition to identifying the molecules involved in vertebrate regeneration.</p>',
	'date' => '2016-03-12',
	'pmid' => 'http://onlinelibrary.wiley.com/doi/10.1111/wrr.12429/abstract',
	'doi' => '10.1111/wrr.12429',
	'modified' => '2016-04-08 17:24:06',
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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
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Notice (8): Undefined variable: campaign_id [APP/View/Products/view.ctp, line 755]
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			'antibody_id' => '86',
			'name' => 'H3K27me2 polyclonal antibody ',
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			'label1' => 'Validation Data',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_ChIP.jpg" alt="H3K27me2 Antibody ChIP Grade" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K27me2</strong><br /> ChIP assays were performed using human HeLa cells, the Diagenode antibody against H3K27me2 (cat. No. C15410046) and optimized PCR primer sets for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (cat. No. AB-Auto02-A100) on the SX-8G IP-Star Compact automated system, using sheared chromatin from 1 million cells. A titration of the antibody consisting of 1, 2, 5, and 10 &mu;g per ChIP experiment was analysed. IgG (2 &mu;g/IP) was used as negative IP control. QPCR was performed with primers for the promoter of the active GAPDH and EIF4A2 genes, used as negative controls, and for the promoter of the inactive HBB and the coding region of the inactive MYOD1 genes, used as positive controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). These results are in accordance with the observation that H3K27me2 is preferably present at silent genes. </small></p>
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<p><small><strong> Figure 2. 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 directed against H3K27me2 (cat. No. C15410046). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 2), the titer of the antibody was estimated to be 1:480,000. </small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_dotblot.jpg" alt="H3K27me2 Antibody validated in Dot Blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 3. Cross reactivity tests using the Diagenode antibody directed against H3K27me2</strong><br /> A Dot Blot analysis was performed to test the cross reactivity of the Diagenode antibody against H3K27me2 (cat. No. C15410046) with peptides containing other modifications of histone H3 and H4 and the unmodified sequence. One hundred to 0.2 pmol of peptide containing the respective histone modification were spotted on a membrane. The antibody was used at a dilution of 1:50,000. Figure 3 shows a high specificity of the antibody for the modification of interest. </small></p>
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<p><small><strong> Figure 4. Western blot analysis using the Diagenode antibody directed against H3K27me2</strong><br /> Histone extracts (15 &mu;g) from HeLa cells were analysed by Western blot using the Diagenode antibody against H3K27me2 (cat. No. C15410046) diluted 1:1,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; the marker (in kDa) is shown on the left. </small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_IF.jpg" alt="H3K27me2 Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 5. Immunofluorescence using the Diagenode antibody directed against H3K27me2</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K27me2 (cat. No. C15410046) 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 labelled with the H3K27me2 antibody (left) diluted 1:500 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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<thead>
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<th>References</th>
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<tr>
<td>ChIP <sup>*</sup> </td>
<td>2 μg/ChIP</td>
<td>Fig 1</td>
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<tr>
<td>ELISA</td>
<td>1:1,000</td>
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<tr>
<td>Dot Blotting</td>
<td>1:50,000</td>
<td>Fig 3</td>
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<tr>
<td>Western Blotting</td>
<td>1:1,000</td>
<td>Fig 4</td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:500</td>
<td>Fig 5</td>
</tr>
</tbody>
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<small><sup>*</sup> Please note that the optimal antibody amount per IP should be determined by the end-user. We recommend testing 1-5 μg per IP.</small>',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_ChIP.jpg" alt="H3K27me2 Antibody ChIP Grade" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K27me2</strong><br /> ChIP assays were performed using human HeLa cells, the Diagenode antibody against H3K27me2 (cat. No. C15410046) and optimized PCR primer sets for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (cat. No. AB-Auto02-A100) on the SX-8G IP-Star Compact automated system, using sheared chromatin from 1 million cells. A titration of the antibody consisting of 1, 2, 5, and 10 &mu;g per ChIP experiment was analysed. IgG (2 &mu;g/IP) was used as negative IP control. QPCR was performed with primers for the promoter of the active GAPDH and EIF4A2 genes, used as negative controls, and for the promoter of the inactive HBB and the coding region of the inactive MYOD1 genes, used as positive controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). These results are in accordance with the observation that H3K27me2 is preferably present at silent genes. </small></p>
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<p><small><strong> Figure 2. 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 directed against H3K27me2 (cat. No. C15410046). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 2), the titer of the antibody was estimated to be 1:480,000. </small></p>
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<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_dotblot.jpg" alt="H3K27me2 Antibody validated in Dot Blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 3. Cross reactivity tests using the Diagenode antibody directed against H3K27me2</strong><br /> A Dot Blot analysis was performed to test the cross reactivity of the Diagenode antibody against H3K27me2 (cat. No. C15410046) with peptides containing other modifications of histone H3 and H4 and the unmodified sequence. One hundred to 0.2 pmol of peptide containing the respective histone modification were spotted on a membrane. The antibody was used at a dilution of 1:50,000. Figure 3 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/C15410046_WB.jpg" alt="H3K27me2 Antibody validated in Western blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Western blot analysis using the Diagenode antibody directed against H3K27me2</strong><br /> Histone extracts (15 &mu;g) from HeLa cells were analysed by Western blot using the Diagenode antibody against H3K27me2 (cat. No. C15410046) diluted 1:1,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; the marker (in kDa) is shown on the left. </small></p>
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<div class="small-7 columns">
<p><small><strong> Figure 5. Immunofluorescence using the Diagenode antibody directed against H3K27me2</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K27me2 (cat. No. C15410046) 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 labelled with the H3K27me2 antibody (left) diluted 1:500 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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		'id' => '86',
		'name' => 'H3K27me2 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. Levels of H3K27 dimethylation are higher in silent genes than in active genes suggesting that this histone modification is associated with transcriptional repression.',
		'clonality' => '',
		'isotype' => '',
		'lot' => 'A1968-0024P',
		'concentration' => '2.63 &micro;g/&micro;l',
		'reactivity' => 'Human, zebrafish',
		'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 <sup>*</sup> </td>
<td>2 μg/ChIP</td>
<td>Fig 1</td>
</tr>
<tr>
<td>ELISA</td>
<td>1:1,000</td>
<td>Fig 2</td>
</tr>
<tr>
<td>Dot Blotting</td>
<td>1:50,000</td>
<td>Fig 3</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:1,000</td>
<td>Fig 4</td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:500</td>
<td>Fig 5</td>
</tr>
</tbody>
</table>

<small><sup>*</sup> Please note that the optimal antibody amount per IP should be determined by the end-user. We recommend testing 1-5 μg per IP.</small>',
		'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' => '2016-08-03 10:55:24',
		'created' => '0000-00-00 00:00:00',
		'select_label' => '86 - H3K27me2 polyclonal antibody (A1968-0024P - 2.63 &micro;g/&micro;l - Human, zebrafish - Affinity purified - Rabbit)'
	),
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			'id' => '185',
			'name' => 'C15410046',
			'product_id' => '2207',
			'modified' => '2016-07-12 10:29:24',
			'created' => '2016-07-12 10:29:24'
		)
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			'id' => '185',
			'name' => 'C15410046',
			'product_id' => '2207',
			'modified' => '2016-07-12 10:29:24',
			'created' => '2016-07-12 10:29:24'
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		'Master' => array(
			'id' => '2207',
			'antibody_id' => '86',
			'name' => 'H3K27me2 Antibody',
			'description' => '<p><span>Polyclonal antibody raised in rabbit against the histone H3, dimethylated at lysine 27 (<strong>H3K27me2</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/C15410046_ChIP.jpg" alt="H3K27me2 Antibody ChIP Grade" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 1. ChIP results obtained with the Diagenode antibody directed against H3K27me2</strong><br /> ChIP assays were performed using human HeLa cells, the Diagenode antibody against H3K27me2 (cat. No. C15410046) and optimized PCR primer sets for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (cat. No. AB-Auto02-A100) on the SX-8G IP-Star Compact automated system, using sheared chromatin from 1 million cells. A titration of the antibody consisting of 1, 2, 5, and 10 &mu;g per ChIP experiment was analysed. IgG (2 &mu;g/IP) was used as negative IP control. QPCR was performed with primers for the promoter of the active GAPDH and EIF4A2 genes, used as negative controls, and for the promoter of the inactive HBB and the coding region of the inactive MYOD1 genes, used as positive controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). These results are in accordance with the observation that H3K27me2 is preferably present at silent genes. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_ELISA.jpg" alt="H3K27me2 Antibody ELISA validation" caption="false" width="288" height="217" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 2. 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 directed against H3K27me2 (cat. No. C15410046). The antigen used was a peptide containing the histone modification of interest. By plotting the absorbance against the antibody dilution (Figure 2), the titer of the antibody was estimated to be 1:480,000. </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15410046_dotblot.jpg" alt="H3K27me2 Antibody validated in Dot Blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 3. Cross reactivity tests using the Diagenode antibody directed against H3K27me2</strong><br /> A Dot Blot analysis was performed to test the cross reactivity of the Diagenode antibody against H3K27me2 (cat. No. C15410046) with peptides containing other modifications of histone H3 and H4 and the unmodified sequence. One hundred to 0.2 pmol of peptide containing the respective histone modification were spotted on a membrane. The antibody was used at a dilution of 1:50,000. Figure 3 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/C15410046_WB.jpg" alt="H3K27me2 Antibody validated in Western blot" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 4. Western blot analysis using the Diagenode antibody directed against H3K27me2</strong><br /> Histone extracts (15 &mu;g) from HeLa cells were analysed by Western blot using the Diagenode antibody against H3K27me2 (cat. No. C15410046) diluted 1:1,000 in TBS-Tween containing 5% skimmed milk. The position of the protein of interest is indicated on the right; 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/C15410046_IF.jpg" alt="H3K27me2 Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 5. Immunofluorescence using the Diagenode antibody directed against H3K27me2</strong><br /> HeLa cells were stained with the Diagenode antibody against H3K27me2 (cat. No. C15410046) 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 labelled with the H3K27me2 antibody (left) diluted 1:500 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. Levels of H3K27 dimethylation are higher in silent genes than in active genes suggesting that this histone modification is associated with transcriptional repression.</p>',
			'label3' => '',
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			'format' => '50 µg/19 µl',
			'catalog_number' => 'C15410046',
			'old_catalog_number' => 'pAb-046-050',
			'sf_code' => 'C15410046-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',
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			'in_stock' => false,
			'featured' => false,
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			'online' => true,
			'master' => true,
			'last_datasheet_update' => '0000-00-00',
			'slug' => 'h3k27me2-polyclonal-antibody-classic-50-ug-19-ul',
			'meta_title' => 'H3K27me2 Antibody - ChIP Grade (C15410046) | Diagenode',
			'meta_keywords' => '',
			'meta_description' => 'H3K27me2 (Histone H3 dimethylated at lysine 27) Polyclonal Antibody validated  in ChIP-qPCR, ELISA, DB, WB and IF. Batch-specific data available on the website. Sample size available.',
			'modified' => '2024-11-19 16:50:37',
			'created' => '2015-06-29 14:08:20'
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<div class="small-12 medium-12 large-12 columns">Enzyme-linked immunosorbent assay.</div>
</div>',
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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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			'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 Immunofluorescence applications',
			'meta_title' => 'Immunofluorescence - Monoclonal antibody - Polyclonal antibody | Diagenode',
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			'slug' => 'chip-qpcr-antibodies',
			'meta_keywords' => 'Chromatin Immunoprecipitation Sequencing,ChIP-Seq,ChIP-seq grade antibodies,DNA purification,qPCR,Shearing of chromatin',
			'meta_description' => 'Diagenode offers a wide range of antibodies and technical support for ChIP-qPCR applications',
			'meta_title' => 'ChIP Quantitative PCR  Antibodies (ChIP-qPCR) | Diagenode',
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			'id' => '111',
			'position' => '40',
			'parent_id' => '4',
			'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>
</ul>',
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			'meta_keywords' => 'Histone, antibody, histone h1, histone h2, histone h3, histone h4',
			'meta_description' => 'Polyclonal and Monoclonal Antibodies against Histones and their modifications validated for many applications, including Chromatin Immunoprecipitation (ChIP) and ChIP-Sequencing (ChIP-seq)',
			'meta_title' => 'Histone and Modified Histone Antibodies | Diagenode',
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			'name' => 'All antibodies',
			'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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			'meta_description' => 'Diagenode Offers Strict quality standards with Rigorous QC and validated Antibodies. Classified based on level of validation for flexibility of Application. Comprehensive selection of histone and non-histone Antibodies',
			'meta_title' => 'Diagenode's selection of Antibodies is exclusively dedicated for Epigenetic Research | Diagenode',
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			'name' => 'ChIP-grade antibodies',
			'description' => '<div class="row">
<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>
</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>
<div class="row">
<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>
<div class="small-12 medium-6 large-6 columns">
<p></p>
<p></p>
<p></p>
</div>
</div>
<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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			'meta_description' => 'Diagenode Offers Extensively Validated ChIP-Grade Antibodies, Confirmed for their Specificity, and high level of Performance in Chromatin Immunoprecipitation ChIP',
			'meta_title' => 'Chromatin immunoprecipitation ChIP-grade antibodies | Diagenode',
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			'description' => '<p><span>Mature lymphoid stromal cells (LSCs) are key organizers of immune responses within secondary lymphoid organs. Similarly, inflammation-driven tertiary lymphoid structures depend on immunofibroblasts producing lymphoid cytokines and chemokines. Recent studies have explored the origin and heterogeneity of LSC/immunofibroblasts, yet the molecular and epigenetic mechanisms involved in their commitment are still unknown. This study explored the transcriptomic and epigenetic reprogramming underlying LSC/immunofibroblast commitment. We identified the induction of lysine demethylase 6B (KDM6B) as the primary epigenetic driver of early immunofibroblast differentiation. In addition, we observed an enrichment for KDM6B gene signature in murine inflammatory fibroblasts and pathogenic stroma of patients with autoimmune diseases. Last, KDM6B was required for the acquisition of LSC/immunofibroblast functional properties, including the up-regulation of CCL2 and the resulting recruitment of monocytes. Overall, our results reveal epigenetic mechanisms that participate in the early commitment and immune properties of immunofibroblasts and support the use of epigenetic modifiers as fibroblast-targeting strategies in chronic inflammation.</span></p>',
			'date' => '2023-11-29',
			'pmid' => 'https://pubmed.ncbi.nlm.nih.gov/38019914/',
			'doi' => '10.1126/sciadv.adh2708',
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			'name' => 'Nox4 promotes endothelial differentiation through chromatin remodeling.',
			'authors' => 'Hahner  F. et al.',
			'description' => '<p>RATIONALE: Nox4 is a constitutively active NADPH oxidase that constantly produces low levels of HO. Thereby, Nox4 contributes to cell homeostasis and long-term processes, such as differentiation. The high expression of Nox4 seen in endothelial cells contrasts with the low abundance of Nox4 in stem cells, which are accordingly characterized by low levels of HO. We hypothesize that Nox4 is a major contributor to endothelial differentiation, is induced during the process of differentiation, and facilitates homeostasis of the resulting endothelial cells. OBJECTIVE: To determine the role of No&times;4 in differentiation of murine inducible pluripotent stem cells (miPSC) into endothelial cells (ECs). METHODS AND RESULTS: miPSC, generated from mouse embryonic wildtype (WT) and Nox4 fibroblasts, were differentiated into endothelial cells (miPSC-EC) by stimulation with BMP4 and VEGF. During this process, Nox4 expression increased and knockout of Nox4 prolonged the abundance of pluripotency markers, while expression of endothelial markers was delayed in differentiating Nox4-depleted iPSCs. Eventually, angiogenic capacity of iPSC-ECs is reduced in Nox4 deficient cells, indicating that an absence of Nox4 diminishes stability of the reached phenotype. As an underlying mechanism, we identified JmjD3 as a redox target of Nox4. iPSC-ECs lacking Nox4 display a lower nuclear abundance of the histone demethylase JmjD3, resulting in an increased triple methylation of histone 3 (H3K27me3), which serves as a repressive mark for several genes involved in differentiation. CONCLUSIONS: Nox4 promotes differentiation of miPSCs into ECs by oxidation of JmjD3 and subsequent demethylation of H3K27me3, which forced endothelial differentiation and stability.</p>',
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			'name' => 'Forskolin Sensitizes Human Acute Myeloid Leukemia Cells to H3K27me2/3 Demethylases GSKJ4 Inhibitor via Protein Kinase A.',
			'authors' => 'Illiano M, Conte M, Sapio L, Nebbioso A, Spina A, Altucci L, Naviglio S',
			'description' => '<p>Acute myeloid leukemia (AML) is an aggressive hematological malignancy occurring very often in older adults, with poor prognosis depending on both rapid disease progression and drug resistance occurrence. Therefore, new therapeutic approaches are demanded. Epigenetic marks play a relevant role in AML. GSKJ4 is a novel inhibitor of the histone demethylases JMJD3 and UTX. To note GSKJ4 has been recently shown to act as a potent small molecule inhibitor of the proliferation in many cancer cell types. On the other hand, forskolin, a natural cAMP raising compound, used for a long time in traditional medicine and considered safe also in recent studies, is emerging as a very interesting molecule for possible use in cancer therapy. Here, we investigate the effects of forskolin on the sensitivity of human leukemia U937 cells to GSKJ4 through flow cytometry-based assays (cell-cycle progression and cell death), cell number counting, and immunoblotting experiments. We provide evidence that forskolin markedly potentiates GSKJ4-induced antiproliferative effects by apoptotic cell death induction, accompanied by a dramatic BCL2 protein down-regulation as well as caspase 3 activation and PARP protein cleavage. Comparable effects are observed with the phosphodiesterase inhibitor IBMX and 8-Br-cAMP analogous, but not by using 8-pCPT-2'-O-Me-cAMP Epac activator. Moreover, the forskolin-induced enhancement of sensitivity to GSKJ4 is counteracted by pre-treatment with Protein Kinase A (PKA) inhibitors. Altogether, our data strongly suggest that forskolin sensitizes U937 cells to GSKJ4 inhibitor via a cAMP/PKA-mediated mechanism. Our findings provide initial evidence of anticancer activity induced by forskolin/GSKJ4 combination in leukemia cells and underline the potential for use of forskolin and GSKJ4 in the development of innovative and effective therapeutic approaches for AML treatment.</p>',
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			'description' => '<p>To date, it remains largely unclear to what extent chromatin machinery contributes to the susceptibility and progression of complex diseases. Here, we combine deep epigenome mapping with single-cell transcriptomics to mine for evidence of chromatin dysregulation in type 2 diabetes. We find two chromatin-state signatures that track &beta; cell dysfunction in mice and humans: ectopic activation of bivalent Polycomb-silenced domains and loss of expression at an epigenomically unique class of lineage-defining genes. &beta; cell-specific Polycomb (Eed/PRC2) loss of function in mice triggers diabetes-mimicking transcriptional signatures and highly penetrant, hyperglycemia-independent dedifferentiation, indicating that PRC2 dysregulation contributes to disease. The work provides novel resources for exploring &beta;&nbsp;cell transcriptional regulation and identifies PRC2 as necessary for long-term maintenance of &beta; cell identity. Importantly, the data suggest a two-hit (chromatin and hyperglycemia) model for loss of &beta;&nbsp;cell identity in diabetes.</p>',
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)
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	'position' => '10',
	'parent_id' => '40',
	'name' => 'ChIP-qPCR (ab)',
	'description' => '',
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	'slug' => 'chip-qpcr-antibodies',
	'meta_keywords' => 'Chromatin Immunoprecipitation Sequencing,ChIP-Seq,ChIP-seq grade antibodies,DNA purification,qPCR,Shearing of chromatin',
	'meta_description' => 'Diagenode offers a wide range of antibodies and technical support for ChIP-qPCR applications',
	'meta_title' => 'ChIP Quantitative PCR  Antibodies (ChIP-qPCR) | Diagenode',
	'modified' => '2016-01-20 11:30:24',
	'created' => '2015-10-20 11:45:36',
	'locale' => 'jpn'
)
$description = ''
$name = 'ChIP-qPCR (ab)'
$document = array(
	'id' => '38',
	'name' => 'Epigenetic Antibodies Brochure',
	'description' => '<p>More than in any other immuoprecipitation assays, quality antibodies are critical tools in many epigenetics experiments. Since 10 years, Diagenode has developed the most stringent quality production available on the market for antibodies exclusively focused on epigenetic uses. All our antibodies have been qualified to work in epigenetic applications.</p>',
	'image_id' => null,
	'type' => 'Brochure',
	'url' => 'files/brochures/Epigenetic_Antibodies_Brochure.pdf',
	'slug' => 'epigenetic-antibodies-brochure',
	'meta_keywords' => '',
	'meta_description' => '',
	'modified' => '2016-06-15 11:24:06',
	'created' => '2015-07-03 16:05:27',
	'ProductsDocument' => array(
		'id' => '2027',
		'product_id' => '2207',
		'document_id' => '38'
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	'name' => 'H3K27me2 antibody SDS BE nl',
	'language' => 'nl',
	'url' => 'files/SDS/H3K27me2/SDS-C15410046-H3K27me2_antibody-BE-nl-GHS_2_0.pdf',
	'countries' => 'BE',
	'modified' => '2020-06-08 16:27:18',
	'created' => '2020-06-08 16:21:00',
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	'id' => '2886',
	'name' => 'Role of Annexin gene and its regulation during zebrafish caudal fin regeneration',
	'authors' => 'Saxena S, Purushothaman S, Meghah V, Bhatti B, Poruri A, Meena Lakshmi MG, Sarath Babu N, Murthy CL, Mandal KK, Kumar A, Idris MM',
	'description' => '<p>The molecular mechanism of epimorphic regeneration is elusive due to its complexity and limitation in mammals. Epigenetic regulatory mechanisms play a crucial role in development and regeneration. This investigation attempted to reveal the role of epigenetic regulatory mechanisms, such as histone H3 and H4 lysine acetylation and methylation during zebrafish caudal fin regeneration. It was intriguing to observe that H3K9,14 acetylation, H4K20 trimethylation, H3K4 trimethylation and H3K9 dimethylation along with their respective regulatory genes, such as <em>GCN5, SETd8b, SETD7/9</em> and <em>SUV39h1</em>, were differentially regulated in the regenerating fin at various time points of post-amputation. Annexin genes have been associated with regeneration; this study reveals the significant upregulation of <em>ANXA2a</em> and <em>ANXA2b</em> transcripts and their protein products during the regeneration process. Chromatin Immunoprecipitation (ChIP) and PCR analysis of the regulatory regions of the <em>ANXA2a</em> and <em>ANXA2b</em> genes demonstrated the ability to repress two histone methylations, H3K27me3 and H4K20me3, in transcriptional regulation during regeneration. It is hypothesized that this novel insight into the diverse epigenetic mechanisms that play a critical role during the regeneration process may help to strategize the translational efforts, in addition to identifying the molecules involved in vertebrate regeneration.</p>',
	'date' => '2016-03-12',
	'pmid' => 'http://onlinelibrary.wiley.com/doi/10.1111/wrr.12429/abstract',
	'doi' => '10.1111/wrr.12429',
	'modified' => '2016-04-08 17:24:06',
	'created' => '2016-04-08 17:24:06',
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$externalLink = ' <a href="http://onlinelibrary.wiley.com/doi/10.1111/wrr.12429/abstract" 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