H3K9ac monoclonal antibody

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			'name' => 'H3K9ac monoclonal antibody ',
			'description' => '<p><span>Monoclonal antibody raised in mouse against histone H3 acetylated at lysine 9 (H3K9ac), 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/c15200185-chip.jpg" alt="H3K9ac 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 monoclonal antibody directed against H3K9ac </strong><br />ChIP assays were performed using human HeLa cells, the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (Cat. No. C01010020), using sheared chromatin from 1 million cells. A titration consisting of 0.5, 1, 2 and 5 &mu;g of antibody per ChIP experiment was analyzed. IgG (1 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers specific for the promoter of the EIF4A2 gene, used as positive control, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<p><img src="https://www.diagenode.com/img/product/antibodies/C15200185_ELISA.png" alt="H3K9ac Antibody validated in ELISA" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 2. Cross reactivity of the Diagenode monoclonal antibody directed against H3K9ac </strong><br />To test the specificity an ELISA was performed using a serial dilution of the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185). The wells were coated with peptides containing the unmodified H3K9 region as well as the acetylated H3K9 and the acetylated H3K27. Figure 2 shows a high specificity of the antibody for the peptide containing the modification of interest. </small></p>
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</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200185_IF.png" alt="H3K9ac Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 3. Immunofluorescence using the Diagenode monoclonal antibody directed against H3K9ac </strong><br />HeLa cells were stained with the Diagenode antibody against H3K9ac (Cat. No. C15200185) 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 H3K9ac antibody (left) diluted 1:500 in blocking solution followed by an anti-mouse antibody conjugated to Alexa594. 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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<tr>
<td>ChIP <sup>*</sup></td>
<td>0.5-1 &mu;g/ChIP</td>
<td>Fig 1</td>
</tr>
<tr>
<td>ELISA</td>
<td>1:3,000</td>
<td>Fig 2</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:1,000 - 1,2000</td>
<td></td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:500</td>
<td>Fig 3</td>
</tr>
</tbody>
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<p><small><sup>*</sup> Please note that the optimal antibody amount per IP should be determined by the end-user. We recommend testing 1-5 &mu;g per IP.</small></p>',
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$meta_title = 'H3K9ac Monoclonal Antibody | Diagenode'
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		'description' => '<p><span>Monoclonal antibody raised in mouse against histone H3 acetylated at lysine 9 (H3K9ac), 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/c15200185-chip.jpg" alt="H3K9ac 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 monoclonal antibody directed against H3K9ac </strong><br />ChIP assays were performed using human HeLa cells, the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (Cat. No. C01010020), using sheared chromatin from 1 million cells. A titration consisting of 0.5, 1, 2 and 5 &mu;g of antibody per ChIP experiment was analyzed. IgG (1 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers specific for the promoter of the EIF4A2 gene, used as positive control, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200185_ELISA.png" alt="H3K9ac Antibody validated in ELISA" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 2. Cross reactivity of the Diagenode monoclonal antibody directed against H3K9ac </strong><br />To test the specificity an ELISA was performed using a serial dilution of the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185). The wells were coated with peptides containing the unmodified H3K9 region as well as the acetylated H3K9 and the acetylated H3K27. Figure 2 shows a high specificity of the antibody for the peptide containing the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200185_IF.png" alt="H3K9ac Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<p><small><strong> Figure 3. Immunofluorescence using the Diagenode monoclonal antibody directed against H3K9ac </strong><br />HeLa cells were stained with the Diagenode antibody against H3K9ac (Cat. No. C15200185) 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 H3K9ac antibody (left) diluted 1:500 in blocking solution followed by an anti-mouse antibody conjugated to Alexa594. 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>
<tr>
<th>Applications</th>
<th>Suggested dilution</th>
<th>References</th>
</tr>
</thead>
<tbody>
<tr>
<td>ChIP <sup>*</sup></td>
<td>0.5-1 &mu;g/ChIP</td>
<td>Fig 1</td>
</tr>
<tr>
<td>ELISA</td>
<td>1:3,000</td>
<td>Fig 2</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:1,000 - 1,2000</td>
<td></td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:500</td>
<td>Fig 3</td>
</tr>
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<p><small><sup>*</sup> Please note that the optimal antibody amount per IP should be determined by the end-user. We recommend testing 1-5 &mu;g per IP.</small></p>',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/c15200185-chip.jpg" alt="H3K9ac 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 monoclonal antibody directed against H3K9ac </strong><br />ChIP assays were performed using human HeLa cells, the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (Cat. No. C01010020), using sheared chromatin from 1 million cells. A titration consisting of 0.5, 1, 2 and 5 &mu;g of antibody per ChIP experiment was analyzed. IgG (1 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers specific for the promoter of the EIF4A2 gene, used as positive control, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200185_ELISA.png" alt="H3K9ac Antibody validated in ELISA" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 2. Cross reactivity of the Diagenode monoclonal antibody directed against H3K9ac </strong><br />To test the specificity an ELISA was performed using a serial dilution of the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185). The wells were coated with peptides containing the unmodified H3K9 region as well as the acetylated H3K9 and the acetylated H3K27. Figure 2 shows a high specificity of the antibody for the peptide containing the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200185_IF.png" alt="H3K9ac Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 3. Immunofluorescence using the Diagenode monoclonal antibody directed against H3K9ac </strong><br />HeLa cells were stained with the Diagenode antibody against H3K9ac (Cat. No. C15200185) 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 H3K9ac antibody (left) diluted 1:500 in blocking solution followed by an anti-mouse antibody conjugated to Alexa594. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
</div>
</div>',
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			'meta_title' => 'H3K9ac Antibody - ChIP Grade (C15200185) | Diagenode',
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			'meta_description' => 'H3K9ac (Histone H3 acetylated at lysine 9) Monoclonal Antibody validated  in ChIP-qPCR, ELISA, 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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			'meta_description' => 'Diagenode offers Monoclonal & Polyclonal antibodies for ELISA applications',
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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 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_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',
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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>
<div class="small-12 medium-6 large-6 columns">
<p></p>
<p></p>
<p></p>
</div>
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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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			'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' => 'Trichoderma root colonization triggers epigenetic changes in jasmonic andsalicylic acid pathway-related genes.',
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			'description' => '<p>Beneficial interactions between plant-roots and Trichoderma spp. lead to a local and systemic enhancement of the plant immune system through a mechanism known as priming of defenses. In recent reports, we outlined a repertoire of genes and proteins differentially regulated in distant tissues of maize plants previously inoculated with Trichoderma atroviride. To further investigate the mechanisms involved in the systemic activation of plant responses, we continued evaluating the regulatory aspects of a selected group of genes when priming is triggered in maize plants. We conducted a time-course expression experiment from the beginning of the interaction between T. atroviride and maize roots, along plant vegetative growth and during Colletotrichum graminicola leaf infection. In addition to gene expression studies, the levels of jasmonic and salicylic acid were determined in the same samples for a comprehensive understanding of the gene expression results. Lastly, chromatin structure and modification assays were designed to evaluate the role of epigenetic marks during the long-lasting activation of the primed state of maize plants. The overall analysis of the results allowed us to shed some light on the interplay between the phytohormones and epigenetic regulatory events in the systemic and long-lasting regulation of maize plant defenses after Trichoderma inoculation.</p>',
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			'description' => '<p>Citrate, a central component of cellular metabolism, is a widely used anti-coagulant due to its ability to chelate calcium. Adenosine triphosphate (ATP)-citrate lyase, which metabolizes citrate, has been shown to be essential for inflammation, but the ability of exogenous citrate to impact inflammatory signalling cascades remains largely unknown. We hypothesized that citrate would modulate inflammatory responses as both a cellular metabolite and calcium chelator, and tested this hypothesis by determining how clinically relevant levels of citrate modulate monocyte proinflammatory responses to lipopolysaccharide (LPS) in a human acute monocytic leukaemia cell line (THP-1). In normal medium (0&middot;4 mM calcium), citrate inhibited LPS-induced tumour necrosis factor (TNF)-&alpha; and interleukin (IL)-8 transcripts, whereas in medium supplemented with calcium (1&middot;4 mM), TNF-&alpha; and IL-8 levels increased and appeared independent of calcium chelation. Using an IL-8-luciferase plasmid construct, the same increased response was observed in the activation of the IL-8 promoter region, suggesting transcriptional regulation. Tricarballylic acid, an inhibitor of ATP-citrate lyase, blocked the ability of citrate to augment TNF-&alpha;, linking citrate's augmentation effect with its metabolism by ATP-citrate lyase. In the presence of citrate, increased histone acetylation was observed in the TNF-&alpha; and IL-8 promoter regions of THP-1 cells. We observed that citrate can both augment and inhibit proinflammatory cytokine production via modulation of inflammatory gene transactivation. These findings suggest that citrate anti-coagulation may alter immune function through complex interactions with the inflammatory response.</p>',
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			'pmid' => 'https://www.ncbi.nlm.nih.gov/pubmed/25619261',
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			'description' => '<p>We previously reported the association of elevated levels of the multifunctional transcription factor, CCCTC binding factor (CTCF), in breast cancer cells with the specific anti-apoptotic function of CTCF. To understand the molecular mechanisms of this phenomenon, we investigated regulation of the human Bax gene by CTCF in breast and non-breast cells. Two CTCF binding sites (CTSs) within the Bax promoter were identified. In all cells, breast and non-breast, active histone modifications were present at these CTSs, DNA harboring this region was unmethylated, and levels of Bax mRNA and protein were similar. Nevertheless, up-regulation of Bax mRNA and protein and apoptotic cell death were observed only in breast cancer cells depleted of CTCF. We proposed that increased CTCF binding to the Bax promoter in breast cancer cells, by comparison with non-breast cells, may be mechanistically linked to the specific apoptotic phenotype in CTCF-depleted breast cancer cells. In this study, we show that CTCF binding was enriched at the Bax CTSs in breast cancer cells and tumors; in contrast, binding of other transcription factors (SP1, WT1, EGR1, and c-Myc) was generally increased in non-breast cells and normal breast tissues. Our findings suggest a novel mechanism for CTCF in the epigenetic regulation of Bax in breast cancer cells, whereby elevated levels of CTCF support preferential binding of CTCF to the Bax CTSs. In this context, CTCF functions as a transcriptional repressor counteracting influences of positive regulatory factors; depletion of breast cancer cells from CTCF therefore results in the activation of Bax and apoptosis.</p>',
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	'description' => '<p>We previously reported the association of elevated levels of the multifunctional transcription factor, CCCTC binding factor (CTCF), in breast cancer cells with the specific anti-apoptotic function of CTCF. To understand the molecular mechanisms of this phenomenon, we investigated regulation of the human Bax gene by CTCF in breast and non-breast cells. Two CTCF binding sites (CTSs) within the Bax promoter were identified. In all cells, breast and non-breast, active histone modifications were present at these CTSs, DNA harboring this region was unmethylated, and levels of Bax mRNA and protein were similar. Nevertheless, up-regulation of Bax mRNA and protein and apoptotic cell death were observed only in breast cancer cells depleted of CTCF. We proposed that increased CTCF binding to the Bax promoter in breast cancer cells, by comparison with non-breast cells, may be mechanistically linked to the specific apoptotic phenotype in CTCF-depleted breast cancer cells. In this study, we show that CTCF binding was enriched at the Bax CTSs in breast cancer cells and tumors; in contrast, binding of other transcription factors (SP1, WT1, EGR1, and c-Myc) was generally increased in non-breast cells and normal breast tissues. Our findings suggest a novel mechanism for CTCF in the epigenetic regulation of Bax in breast cancer cells, whereby elevated levels of CTCF support preferential binding of CTCF to the Bax CTSs. In this context, CTCF functions as a transcriptional repressor counteracting influences of positive regulatory factors; depletion of breast cancer cells from CTCF therefore results in the activation of Bax and apoptosis.</p>',
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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
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Dispatcher::dispatch() - CORE/Cake/Routing/Dispatcher.php, line 167
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Notice (8): Undefined variable: header [APP/View/Products/view.ctp, line 755]
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			'name' => 'H3K9ac monoclonal antibody ',
			'description' => '<p><span>Monoclonal antibody raised in mouse against histone H3 acetylated at lysine 9 (H3K9ac), 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/c15200185-chip.jpg" alt="H3K9ac 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 monoclonal antibody directed against H3K9ac </strong><br />ChIP assays were performed using human HeLa cells, the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (Cat. No. C01010020), using sheared chromatin from 1 million cells. A titration consisting of 0.5, 1, 2 and 5 &mu;g of antibody per ChIP experiment was analyzed. IgG (1 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers specific for the promoter of the EIF4A2 gene, used as positive control, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<p><small><strong> Figure 2. Cross reactivity of the Diagenode monoclonal antibody directed against H3K9ac </strong><br />To test the specificity an ELISA was performed using a serial dilution of the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185). The wells were coated with peptides containing the unmodified H3K9 region as well as the acetylated H3K9 and the acetylated H3K27. Figure 2 shows a high specificity of the antibody for the peptide containing the modification of interest. </small></p>
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<p><small><strong> Figure 3. Immunofluorescence using the Diagenode monoclonal antibody directed against H3K9ac </strong><br />HeLa cells were stained with the Diagenode antibody against H3K9ac (Cat. No. C15200185) 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 H3K9ac antibody (left) diluted 1:500 in blocking solution followed by an anti-mouse antibody conjugated to Alexa594. 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>Fig 1</td>
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<p><img src="https://www.diagenode.com/img/product/antibodies/c15200185-chip.jpg" alt="H3K9ac 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 monoclonal antibody directed against H3K9ac </strong><br />ChIP assays were performed using human HeLa cells, the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (Cat. No. C01010020), using sheared chromatin from 1 million cells. A titration consisting of 0.5, 1, 2 and 5 &mu;g of antibody per ChIP experiment was analyzed. IgG (1 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers specific for the promoter of the EIF4A2 gene, used as positive control, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<p><small><strong> Figure 2. Cross reactivity of the Diagenode monoclonal antibody directed against H3K9ac </strong><br />To test the specificity an ELISA was performed using a serial dilution of the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185). The wells were coated with peptides containing the unmodified H3K9 region as well as the acetylated H3K9 and the acetylated H3K27. Figure 2 shows a high specificity of the antibody for the peptide containing the modification of interest. </small></p>
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<p><small><strong> Figure 3. Immunofluorescence using the Diagenode monoclonal antibody directed against H3K9ac </strong><br />HeLa cells were stained with the Diagenode antibody against H3K9ac (Cat. No. C15200185) 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 H3K9ac antibody (left) diluted 1:500 in blocking solution followed by an anti-mouse antibody conjugated to Alexa594. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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<td>ChIP <sup>*</sup></td>
<td>0.5-1 &mu;g/ChIP</td>
<td>Fig 1</td>
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<td>ELISA</td>
<td>1:3,000</td>
<td>Fig 2</td>
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<td>Western Blotting</td>
<td>1:1,000 - 1,2000</td>
<td></td>
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<td>Immunofluorescence</td>
<td>1:500</td>
<td>Fig 3</td>
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<p><small><sup>*</sup> Please note that the optimal antibody amount per IP should be determined by the end-user. We recommend testing 1-5 &mu;g per IP.</small></p>',
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<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/c15200185-chip.jpg" alt="H3K9ac 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 monoclonal antibody directed against H3K9ac </strong><br />ChIP assays were performed using human HeLa cells, the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (Cat. No. C01010020), using sheared chromatin from 1 million cells. A titration consisting of 0.5, 1, 2 and 5 &mu;g of antibody per ChIP experiment was analyzed. IgG (1 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers specific for the promoter of the EIF4A2 gene, used as positive control, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200185_ELISA.png" alt="H3K9ac Antibody validated in ELISA" style="display: block; margin-left: auto; margin-right: auto;" /></p>
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<div class="small-8 columns">
<p><small><strong> Figure 2. Cross reactivity of the Diagenode monoclonal antibody directed against H3K9ac </strong><br />To test the specificity an ELISA was performed using a serial dilution of the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185). The wells were coated with peptides containing the unmodified H3K9 region as well as the acetylated H3K9 and the acetylated H3K27. Figure 2 shows a high specificity of the antibody for the peptide containing the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200185_IF.png" alt="H3K9ac Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 3. Immunofluorescence using the Diagenode monoclonal antibody directed against H3K9ac </strong><br />HeLa cells were stained with the Diagenode antibody against H3K9ac (Cat. No. C15200185) 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 H3K9ac antibody (left) diluted 1:500 in blocking solution followed by an anti-mouse antibody conjugated to Alexa594. 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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<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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			'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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<p><span style="font-weight: 400;">Diagenode&rsquo;s highly validated antibodies:</span></p>
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<div class="small-12 columns"><center></center>
<p><br />Chromatin immunoprecipitation (<b>ChIP</b>) is a technique to study the associations of proteins with the specific genomic regions in intact cells. One of the most important steps of this protocol is the immunoprecipitation of targeted protein using the antibody specifically recognizing it. The quality of antibodies used in ChIP is essential for the success of the experiment. Diagenode offers extensively validated ChIP-grade antibodies, confirmed for their specificity, and high level of performance in ChIP. Each batch is validated, and batch-specific data are available on the website.</p>
<p></p>
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<p><strong>ChIP results</strong> obtained with the antibody directed against H3K4me3 (Cat. No. <a href="../p/h3k4me3-polyclonal-antibody-premium-50-ug-50-ul">C15410003</a>).&nbsp;</p>
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<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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	'authors' => 'Méndez-Catalá CF, Gretton S, Vostrov A, Pugacheva E, Farrar D, Ito Y, Docquier F, Kita GX, Murrell A, Lobanenkov V, Klenova E.',
	'description' => '<p>We previously reported the association of elevated levels of the multifunctional transcription factor, CCCTC binding factor (CTCF), in breast cancer cells with the specific anti-apoptotic function of CTCF. To understand the molecular mechanisms of this phenomenon, we investigated regulation of the human Bax gene by CTCF in breast and non-breast cells. Two CTCF binding sites (CTSs) within the Bax promoter were identified. In all cells, breast and non-breast, active histone modifications were present at these CTSs, DNA harboring this region was unmethylated, and levels of Bax mRNA and protein were similar. Nevertheless, up-regulation of Bax mRNA and protein and apoptotic cell death were observed only in breast cancer cells depleted of CTCF. We proposed that increased CTCF binding to the Bax promoter in breast cancer cells, by comparison with non-breast cells, may be mechanistically linked to the specific apoptotic phenotype in CTCF-depleted breast cancer cells. In this study, we show that CTCF binding was enriched at the Bax CTSs in breast cancer cells and tumors; in contrast, binding of other transcription factors (SP1, WT1, EGR1, and c-Myc) was generally increased in non-breast cells and normal breast tissues. Our findings suggest a novel mechanism for CTCF in the epigenetic regulation of Bax in breast cancer cells, whereby elevated levels of CTCF support preferential binding of CTCF to the Bax CTSs. In this context, CTCF functions as a transcriptional repressor counteracting influences of positive regulatory factors; depletion of breast cancer cells from CTCF therefore results in the activation of Bax and apoptosis.</p>',
	'date' => '0000-00-00',
	'pmid' => 'http://www.ncbi.nlm.nih.gov/pubmed/23908591',
	'doi' => '',
	'modified' => '2016-04-15 10:06:12',
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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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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode monoclonal antibody directed against H3K9ac </strong><br />ChIP assays were performed using human HeLa cells, the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (Cat. No. C01010020), using sheared chromatin from 1 million cells. A titration consisting of 0.5, 1, 2 and 5 &mu;g of antibody per ChIP experiment was analyzed. IgG (1 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers specific for the promoter of the EIF4A2 gene, used as positive control, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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		'name' => 'H3K9ac monoclonal 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.',
		'clonality' => '',
		'isotype' => 'IgG2b',
		'lot' => '001-12',
		'concentration' => '1.0 &micro;g/&micro;l',
		'reactivity' => 'Human',
		'type' => 'Monoclonal<br /><strong>ChIP-grade</strong>',
		'purity' => 'Protein A purified monoclonal antibody',
		'classification' => '',
		'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>0.5-1 &mu;g/ChIP</td>
<td>Fig 1</td>
</tr>
<tr>
<td>ELISA</td>
<td>1:3,000</td>
<td>Fig 2</td>
</tr>
<tr>
<td>Western Blotting</td>
<td>1:1,000 - 1,2000</td>
<td></td>
</tr>
<tr>
<td>Immunofluorescence</td>
<td>1:500</td>
<td>Fig 3</td>
</tr>
</tbody>
</table>
<p><small><sup>*</sup> Please note that the optimal antibody amount per IP should be determined by the end-user. We recommend testing 1-5 &mu;g per IP.</small></p>',
		'storage_conditions' => 'Store at -20°C; for long storage, store at -80°C. Avoid multiple freeze-thaw cycles.',
		'storage_buffer' => 'PBS containing 0.05% azide.',
		'precautions' => 'This product is for research use only. Not for use in diagnostic or therapeutic procedures.',
		'uniprot_acc' => '',
		'slug' => '',
		'meta_keywords' => '',
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		'modified' => '2020-12-09 11:26:47',
		'created' => '0000-00-00 00:00:00',
		'select_label' => '176 - H3K9ac monoclonal antibody (001-12 - 1.0 &micro;g/&micro;l - Human - Protein A purified monoclonal antibody - Mouse)'
	),
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			'id' => '210',
			'name' => 'C15200185',
			'product_id' => '2002',
			'modified' => '2017-05-17 15:04:03',
			'created' => '2017-05-17 15:04:03'
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			'id' => '210',
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			'product_id' => '2002',
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			'created' => '2017-05-17 15:04:03'
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		'Master' => array(
			'id' => '2002',
			'antibody_id' => '176',
			'name' => 'H3K9ac Antibody',
			'description' => '<p><span>Monoclonal antibody raised in mouse against <strong>histone H3 acetylated at lysine 9</strong> (<strong>H3K9ac</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/c15200185-chip.jpg" alt="H3K9ac 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 monoclonal antibody directed against H3K9ac </strong><br />ChIP assays were performed using human HeLa cells, the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (Cat. No. C01010020), using sheared chromatin from 1 million cells. A titration consisting of 0.5, 1, 2 and 5 &mu;g of antibody per ChIP experiment was analyzed. IgG (1 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers specific for the promoter of the EIF4A2 gene, used as positive control, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
</div>
</div>
<div class="row">
<div class="small-4 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200185_ELISA.png" alt="H3K9ac Antibody validated in ELISA" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-8 columns">
<p><small><strong> Figure 2. Cross reactivity of the Diagenode monoclonal antibody directed against H3K9ac </strong><br />To test the specificity an ELISA was performed using a serial dilution of the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185). The wells were coated with peptides containing the unmodified H3K9 region as well as the acetylated H3K9 and the acetylated H3K27. Figure 2 shows a high specificity of the antibody for the peptide containing the modification of interest. </small></p>
</div>
</div>
<div class="row">
<div class="small-5 columns">
<p><img src="https://www.diagenode.com/img/product/antibodies/C15200185_IF.png" alt="H3K9ac Antibody validated in Immunofluorescence" style="display: block; margin-left: auto; margin-right: auto;" /></p>
</div>
<div class="small-7 columns">
<p><small><strong> Figure 3. Immunofluorescence using the Diagenode monoclonal antibody directed against H3K9ac </strong><br />HeLa cells were stained with the Diagenode antibody against H3K9ac (Cat. No. C15200185) 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 H3K9ac antibody (left) diluted 1:500 in blocking solution followed by an anti-mouse antibody conjugated to Alexa594. 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.</p>',
			'label3' => '',
			'info3' => '',
			'format' => '50 μg/50 μl',
			'catalog_number' => 'C15200185',
			'old_catalog_number' => 'MAb-185-050',
			'sf_code' => 'C15200185-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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			'slug' => 'h3k9ac-monoclonal-antibody-classic-50-mg-50-ml',
			'meta_title' => 'H3K9ac Antibody - ChIP Grade (C15200185) | Diagenode',
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			'meta_description' => 'H3K9ac (Histone H3 acetylated at lysine 9) Monoclonal Antibody validated  in ChIP-qPCR, ELISA, WB and IF. Batch-specific data available on the website. Sample size available.',
			'modified' => '2024-11-19 16:51:39',
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<div class="small-12 medium-12 large-12 columns">Enzyme-linked immunosorbent assay.</div>
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			'meta_description' => 'Diagenode offers Monoclonal & Polyclonal antibodies for ELISA applications',
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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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			'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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		(int) 0 => array(
			'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_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 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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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: campaign_id [APP/View/Products/view.ctp, line 755]
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode monoclonal antibody directed against H3K9ac </strong><br />ChIP assays were performed using human HeLa cells, the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (Cat. No. C01010020), using sheared chromatin from 1 million cells. A titration consisting of 0.5, 1, 2 and 5 &mu;g of antibody per ChIP experiment was analyzed. IgG (1 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers specific for the promoter of the EIF4A2 gene, used as positive control, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<p><small><strong> Figure 2. Cross reactivity of the Diagenode monoclonal antibody directed against H3K9ac </strong><br />To test the specificity an ELISA was performed using a serial dilution of the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185). The wells were coated with peptides containing the unmodified H3K9 region as well as the acetylated H3K9 and the acetylated H3K27. Figure 2 shows a high specificity of the antibody for the peptide containing the modification of interest. </small></p>
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<p><small><strong> Figure 3. Immunofluorescence using the Diagenode monoclonal antibody directed against H3K9ac </strong><br />HeLa cells were stained with the Diagenode antibody against H3K9ac (Cat. No. C15200185) 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 H3K9ac antibody (left) diluted 1:500 in blocking solution followed by an anti-mouse antibody conjugated to Alexa594. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode monoclonal antibody directed against H3K9ac </strong><br />ChIP assays were performed using human HeLa cells, the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (Cat. No. C01010020), using sheared chromatin from 1 million cells. A titration consisting of 0.5, 1, 2 and 5 &mu;g of antibody per ChIP experiment was analyzed. IgG (1 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers specific for the promoter of the EIF4A2 gene, used as positive control, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<p><small><strong> Figure 2. Cross reactivity of the Diagenode monoclonal antibody directed against H3K9ac </strong><br />To test the specificity an ELISA was performed using a serial dilution of the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185). The wells were coated with peptides containing the unmodified H3K9 region as well as the acetylated H3K9 and the acetylated H3K27. Figure 2 shows a high specificity of the antibody for the peptide containing the modification of interest. </small></p>
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<p><small><strong> Figure 3. Immunofluorescence using the Diagenode monoclonal antibody directed against H3K9ac </strong><br />HeLa cells were stained with the Diagenode antibody against H3K9ac (Cat. No. C15200185) 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 H3K9ac antibody (left) diluted 1:500 in blocking solution followed by an anti-mouse antibody conjugated to Alexa594. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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<p><small><strong> Figure 1. ChIP results obtained with the Diagenode monoclonal antibody directed against H3K9ac </strong><br />ChIP assays were performed using human HeLa cells, the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185) and optimized PCR primer pairs for qPCR. ChIP was performed with the &ldquo;Auto Histone ChIP-seq&rdquo; kit (Cat. No. C01010020), using sheared chromatin from 1 million cells. A titration consisting of 0.5, 1, 2 and 5 &mu;g of antibody per ChIP experiment was analyzed. IgG (1 &mu;g/IP) was used as a negative IP control. Quantitative PCR was performed with primers specific for the promoter of the EIF4A2 gene, used as positive control, and for the inactive MYOD1 gene and the Sat2 satellite repeat, used as negative controls. Figure 1 shows the recovery, expressed as a % of input (the relative amount of immunoprecipitated DNA compared to input DNA after qPCR analysis). </small></p>
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<p><small><strong> Figure 2. Cross reactivity of the Diagenode monoclonal antibody directed against H3K9ac </strong><br />To test the specificity an ELISA was performed using a serial dilution of the Diagenode monoclonal antibody against H3K9ac (Cat. No. C15200185). The wells were coated with peptides containing the unmodified H3K9 region as well as the acetylated H3K9 and the acetylated H3K27. Figure 2 shows a high specificity of the antibody for the peptide containing the modification of interest. </small></p>
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<p><small><strong> Figure 3. Immunofluorescence using the Diagenode monoclonal antibody directed against H3K9ac </strong><br />HeLa cells were stained with the Diagenode antibody against H3K9ac (Cat. No. C15200185) 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 H3K9ac antibody (left) diluted 1:500 in blocking solution followed by an anti-mouse antibody conjugated to Alexa594. The middle panel shows staining of the nuclei with DAPI. A merge of the two stainings is shown on the right. </small></p>
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			'meta_keywords' => ' ELISA Antibodies,Monoclonal antibody, Polyclonal antibody',
			'meta_description' => 'Diagenode offers Monoclonal & Polyclonal antibodies for ELISA applications',
			'meta_title' => 'ELISA Antibodies - Monoclonal & Polyclonal antibody | Diagenode',
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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',
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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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			'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' => 'Antibodies you can trust',
			'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' => 'Trichoderma root colonization triggers epigenetic changes in jasmonic andsalicylic acid pathway-related genes.',
			'authors' => 'Agostini  R. B. et al.',
			'description' => '<p>Beneficial interactions between plant-roots and Trichoderma spp. lead to a local and systemic enhancement of the plant immune system through a mechanism known as priming of defenses. In recent reports, we outlined a repertoire of genes and proteins differentially regulated in distant tissues of maize plants previously inoculated with Trichoderma atroviride. To further investigate the mechanisms involved in the systemic activation of plant responses, we continued evaluating the regulatory aspects of a selected group of genes when priming is triggered in maize plants. We conducted a time-course expression experiment from the beginning of the interaction between T. atroviride and maize roots, along plant vegetative growth and during Colletotrichum graminicola leaf infection. In addition to gene expression studies, the levels of jasmonic and salicylic acid were determined in the same samples for a comprehensive understanding of the gene expression results. Lastly, chromatin structure and modification assays were designed to evaluate the role of epigenetic marks during the long-lasting activation of the primed state of maize plants. The overall analysis of the results allowed us to shed some light on the interplay between the phytohormones and epigenetic regulatory events in the systemic and long-lasting regulation of maize plant defenses after Trichoderma inoculation.</p>',
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			'description' => '<p>Citrate, a central component of cellular metabolism, is a widely used anti-coagulant due to its ability to chelate calcium. Adenosine triphosphate (ATP)-citrate lyase, which metabolizes citrate, has been shown to be essential for inflammation, but the ability of exogenous citrate to impact inflammatory signalling cascades remains largely unknown. We hypothesized that citrate would modulate inflammatory responses as both a cellular metabolite and calcium chelator, and tested this hypothesis by determining how clinically relevant levels of citrate modulate monocyte proinflammatory responses to lipopolysaccharide (LPS) in a human acute monocytic leukaemia cell line (THP-1). In normal medium (0&middot;4 mM calcium), citrate inhibited LPS-induced tumour necrosis factor (TNF)-&alpha; and interleukin (IL)-8 transcripts, whereas in medium supplemented with calcium (1&middot;4 mM), TNF-&alpha; and IL-8 levels increased and appeared independent of calcium chelation. Using an IL-8-luciferase plasmid construct, the same increased response was observed in the activation of the IL-8 promoter region, suggesting transcriptional regulation. Tricarballylic acid, an inhibitor of ATP-citrate lyase, blocked the ability of citrate to augment TNF-&alpha;, linking citrate's augmentation effect with its metabolism by ATP-citrate lyase. In the presence of citrate, increased histone acetylation was observed in the TNF-&alpha; and IL-8 promoter regions of THP-1 cells. We observed that citrate can both augment and inhibit proinflammatory cytokine production via modulation of inflammatory gene transactivation. These findings suggest that citrate anti-coagulation may alter immune function through complex interactions with the inflammatory response.</p>',
			'date' => '2015-06-01',
			'pmid' => 'https://www.ncbi.nlm.nih.gov/pubmed/25619261',
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			'authors' => 'Méndez-Catalá CF, Gretton S, Vostrov A, Pugacheva E, Farrar D, Ito Y, Docquier F, Kita GX, Murrell A, Lobanenkov V, Klenova E.',
			'description' => '<p>We previously reported the association of elevated levels of the multifunctional transcription factor, CCCTC binding factor (CTCF), in breast cancer cells with the specific anti-apoptotic function of CTCF. To understand the molecular mechanisms of this phenomenon, we investigated regulation of the human Bax gene by CTCF in breast and non-breast cells. Two CTCF binding sites (CTSs) within the Bax promoter were identified. In all cells, breast and non-breast, active histone modifications were present at these CTSs, DNA harboring this region was unmethylated, and levels of Bax mRNA and protein were similar. Nevertheless, up-regulation of Bax mRNA and protein and apoptotic cell death were observed only in breast cancer cells depleted of CTCF. We proposed that increased CTCF binding to the Bax promoter in breast cancer cells, by comparison with non-breast cells, may be mechanistically linked to the specific apoptotic phenotype in CTCF-depleted breast cancer cells. In this study, we show that CTCF binding was enriched at the Bax CTSs in breast cancer cells and tumors; in contrast, binding of other transcription factors (SP1, WT1, EGR1, and c-Myc) was generally increased in non-breast cells and normal breast tissues. Our findings suggest a novel mechanism for CTCF in the epigenetic regulation of Bax in breast cancer cells, whereby elevated levels of CTCF support preferential binding of CTCF to the Bax CTSs. In this context, CTCF functions as a transcriptional repressor counteracting influences of positive regulatory factors; depletion of breast cancer cells from CTCF therefore results in the activation of Bax and apoptosis.</p>',
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	'authors' => 'Méndez-Catalá CF, Gretton S, Vostrov A, Pugacheva E, Farrar D, Ito Y, Docquier F, Kita GX, Murrell A, Lobanenkov V, Klenova E.',
	'description' => '<p>We previously reported the association of elevated levels of the multifunctional transcription factor, CCCTC binding factor (CTCF), in breast cancer cells with the specific anti-apoptotic function of CTCF. To understand the molecular mechanisms of this phenomenon, we investigated regulation of the human Bax gene by CTCF in breast and non-breast cells. Two CTCF binding sites (CTSs) within the Bax promoter were identified. In all cells, breast and non-breast, active histone modifications were present at these CTSs, DNA harboring this region was unmethylated, and levels of Bax mRNA and protein were similar. Nevertheless, up-regulation of Bax mRNA and protein and apoptotic cell death were observed only in breast cancer cells depleted of CTCF. We proposed that increased CTCF binding to the Bax promoter in breast cancer cells, by comparison with non-breast cells, may be mechanistically linked to the specific apoptotic phenotype in CTCF-depleted breast cancer cells. In this study, we show that CTCF binding was enriched at the Bax CTSs in breast cancer cells and tumors; in contrast, binding of other transcription factors (SP1, WT1, EGR1, and c-Myc) was generally increased in non-breast cells and normal breast tissues. Our findings suggest a novel mechanism for CTCF in the epigenetic regulation of Bax in breast cancer cells, whereby elevated levels of CTCF support preferential binding of CTCF to the Bax CTSs. In this context, CTCF functions as a transcriptional repressor counteracting influences of positive regulatory factors; depletion of breast cancer cells from CTCF therefore results in the activation of Bax and apoptosis.</p>',
	'date' => '0000-00-00',
	'pmid' => 'http://www.ncbi.nlm.nih.gov/pubmed/23908591',
	'doi' => '',
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$externalLink = ' <a href="http://www.ncbi.nlm.nih.gov/pubmed/23908591" 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