Rabbit Anti-Human Histone H3 (Acetyl-Lys23) monoclonal antibody for ELISA, ICC, IF, WB. Histone H3 is one of the four core proteins of the nucleosome, and it is involved in transcription regulation, DNA repair, DNA replication and chromosomal stability. The N-terminal tail of Histone H3 undergoes many post-translational modifications, including phosphorylation, acetylation, multiple methylation, ubiquitination, and ADP-ribosylation to achieve its diverse functions. HistoneH3 is acetylated and deacetylated on N-terminal lysine residues. Acetylation removes the positive charge on the histone, decreasing the interaction with the negatively charged phosphate groups of DNA, and resulting in a more relaxed structure associated with greater levels of gene transcription. Acetylation of histone H3 at lysine 9 (H3K9Ac) is one of the most well-known epigenetic markers enriched in the promoter region of activated genes.
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