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Anti-acetyl-Histone H3 (Lys27) Antibody 100ul
  • 商城价格 登录后可查看价格
  • 货号 07-360
  • 品牌 Sigma-Aldrich ( 经销商 )
  • CAS号
  • 规格/包装 100ul
  • 单位 支
  • 储存条件
  • 现货状态 一周
  • 数量

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生物来源

rabbit

质量水平

100

抗体形式

serum

antibody product type

primary antibodies

克隆

polyclonal

species reactivity

vertebrates, human, Saccharomyces cerevisiae

species reactivity (predicted by homology)

yeast (based on 100% sequence homology)

manufacturer/tradename

Upstate®

technique(s)

ChIP: suitable (ChIP-seq)
dot blot: suitable
western blot: suitable

同位素/亚型

IgG

一般描述

Histone H3 (UniProt: P61830) is encoded by the HHT1 (also known as YBR010W, YBR0201, HHT2, SIN2, YNL031C, N2749) gene (Gene ID: 852295) in yeast. Histone H3 is a core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histone H3 can undergo various post-translational modifications that either activate or repression gene expression. Histone H3 can undergo mon-, di-, or trimethylation. Trimethylated H3K27 is shown to be tightly associated with inactive gene promoters and monomethylated H3K27 is associated with active promoters. The dimethylated H3K27 has a distribution pattern similar to H3K27. Histone H3 can also undergo acetylation at Lys9, 14, 18, 23, 27 and 56. Acetylation of histone H3 leads to transcriptional activation. Acetylation of histone defines the openness of chromatin as acetylated histones cannot pack as well together as deacetylated histones. H3K27ac as an important enhancer mark that can distinguish between active and poised enhancer elements and enhancer proximal genes that lack H3K27ac enrichment display lower expression levels compared with the average enhancer proximal gene. It is shown that amounts of H3K27ac is gradually declines fom the earliest pronuclear stage to 8-cell stage, corresponding to the major embryonic genome activation (EGA), followed by re-acetylation of H3K27 from the morula stage onwards accompanying the first cell lineage specification in IVF embryos. In Drosophila, H3K27ac is present at high levels in early embryos and declines after 4 hours as the level of trimethylated H3K27 increases. (Ref.: Creyghton, MP et al. ( ). Proc. Natl. Acad. Sci. USA 107(50); 21931-21936; Tie, F et al (2009). Dvelopment 136 (18); 3131-3141)..

特异性

Recognizes Histone H3 acetylated on lysine 27.

免疫原

Epitope: Lys27
KLH-conjugated linear peptide corresponding to 11 amino acids from the N-terminal region of human histone H3 acetylated on Lysine 27.
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