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Histone H3 is a nuclear protein and a component of the nucleosome core, a basic unit of chromatin, that is essential for organizing genomic DNA in eukaryotic nuclei.1 It is a globular protein that contains an unstructured N-terminal tail that extends outside of the nucleosome core and is subject to various post-translational modifications (PTMs), including methylation, phosphorylation, acetylation, and citrullination.1,2 Trimethylation of histone H3 at lysine 27 (H3K27Me3) is associated with gene silencing.3 It is involved in tumor progression through its regulation by enhancer of zeste homolog 2 (EZH2) and transcriptional repression of tumor suppressor genes.4,5 Levels of H3K27Me3 are reduced in 293 T-REx cells containing EEDR236T and SUZ12G610V mutations and in lymphoblastoid cells isolated from patients with Weaver syndrome, a rare overgrowth disorder characterized by EZH2, EED, or SUZ12 mutations, cancer susceptibility, and various distinctive physical features.6 Cayman’s Histone H3K27Me3 Monoclonal Antibody can be used for chromatin immunoprecipitation (ChIP), ELISA, immunohistochemistry (IHC), multiplex-based assay, and Western blot (WB) applications.
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1. Writing, erasing and reading histone lysine methylations. Exp. Mol. Med. 49(4), e324 (2017).
2. Histone posttranslational modifications: Potential role in diagnosis, prognosis, and therapeutics of cancer. Prognostic Epigenetics 15, 351-373 (2019).
3. H3K9me3-
4. Polycomb protein EZH2 regulates cancer cell fate decision in response to DNA damage. Cell Death Differ. 18(11), 1771-1779 (2011).
5. Epigenetic regulation of cancer progression by EZH2: From biological insights to therapeutic potential. Biomark. Res. 6, 10 (2018).
6. Mutations in genes encoding polycomb repressive complex 2 subunits cause Weaver syndrome. Hum. Mutat. 38(6), 637-648 (2017).