HISTONE H3 Antibodies

Histone H3 is a core component of the nucleosome, playing a vital role in chromatin structure and gene regulation. Histone H3, along with H2A, H2B, and H4, forms the nucleosomal core around which DNA wraps. It is highly conserved and undergoes various post-translational modifications (PTMs), including methylation, acetylation, phosphorylation, and ubiquitination. 

Content on Histone H3 Antibodies

Histone H3 is central to the regulation of gene expression and chromatin structure. It is subject to a variety of modifications, with particular modifications occurring at specific residues, such as methylation at lysine 4 (H3K4me3), methylation at lysine 9 (H3K9me3), acetylation at lysine 27 (H3K27ac), and phosphorylation at serine 10 (H3S10ph). These modifications act as epigenetic markers, determining whether chromatin is in an active or repressive state. Histone H3 antibodies are highly specific and can detect either the unmodified H3 protein or specific modifications, allowing researchers to explore the complex "histone code" that governs chromatin dynamics and gene regulation.

Application of Histone H3 Antibodies

• Cancer Research: Altered Histone H3 modifications are implicated in cancer development and progression. For example, mutations in the H3 gene (such as H3K27M) have been identified in certain cancers, particularly pediatric gliomas. Histone H3 antibodies are used to study these mutations and to investigate how changes in H3 modifications, such as hypo- or hyperacetylation, affect chromatin dynamics and oncogene expression.
• DNA Damage and Repair Research: Phosphorylation of Histone H3 at serine 10 (H3S10ph) and other residues is associated with DNA damage responses. Histone H3 antibodies specific to phosphorylated H3 are employed in research to study chromatin remodeling during the DNA damage response, as well as how these modifications facilitate the recruitment of repair factors to damaged DNA sites.
• Stem Cell and Developmental Biology: H3 modifications are key regulators of gene expression during development and differentiation. Histone H3 antibodies are used in stem cell research to investigate how chromatin states change as cells transition from pluripotency to specific lineages. They provide insights into how H3 modifications regulate the expression of developmental genes and control cell fate decisions.
• Transcriptional Regulation: Specific H3 modifications, such as H3K27ac and H3K4me3, are markers of active transcription, while modifications like H3K9me3 are associated with gene repression. Histone H3 antibodies are used to study the regulatory role of these modifications in transcriptional control, providing insights into how chromatin is dynamically remodeled during transcription.

Histone H3 antibodies are indispensable for understanding the complex regulation of chromatin structure, gene expression, and epigenetic modifications, with applications across developmental biology, cancer research, and epigenetics.