HistoneH2A(acetylK9)抗体;HistoneH2A(acetylK9) Antibody—艾普蒂

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     Western blot analysis of Histone H2A (acetyl K9) expression in  HeLa cell lysate treated Trichostatin A.    

  
  

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     Immunohistochemical analysis of paraffin-embedded mouse brain, using Histone H2A (acetyl K9) Antibody.    

  
  

The histone H2A (acetylated at lysine 9. H2AK9ac) antibody is a crucial tool for studying epigenetic regulation linked to chromatin structure and gene expression. Histones, including H2A, undergo post-translational modifications (PTMs) such as acetylation, which modulate DNA accessibility by altering histone-DNA interactions. Acetylation of lysine 9 on H2A reduces the positive charge of histones, weakening their binding to negatively charged DNA and promoting a more open chromatin state. This modification is often associated with transcriptionally active regions, though its specific roles may differ from those of acetylation on other histones (e.g., H3K9ac).

H2AK9ac has been implicated in processes like DNA repair, replication, and transcriptional activation. Researchers use the H2AK9ac antibody in techniques such as chromatin immunoprecipitation (ChIP), immunofluorescence, and Western blotting to map its genomic distribution and study its functional relevance. This antibody is particularly valuable in cancer research, developmental biology, and studies of cellular differentiation, where aberrant acetylation patterns may correlate with disease states or regulatory disruptions.

The specificity of the antibody is critical, as cross-reactivity with similar acetylated residues can lead to misinterpretation. Validated applications, species reactivity (e.g., human, mouse), and experimental controls (e.g., using deacetylase inhibitors or knockout models) are essential for reliable data. Ongoing research aims to clarify H2AK9ac's interplay with other PTMs and its distinct contributions to epigenetic networks.