CST, 14034S, Tri-Methyl-Histone H3 (Lys27) (C36B11) Rabbit Monoclonal Antibody (HRP Conjugate)

Monoclonal Antibody for studying H3 (Lys27) trimethylate. Validated for Western Blotting. Highly specific and rigorously validated in-house, Tri-Methyl-Histone H3 (Lys27) (C36B11) Rabbit Monoclonal Antibody (HRP Conjugate) (CST #14034) is ready to ship. Product Usage Information Western Blotting: 1:1000 Storage Supplied in 136 mM NaCl, 2.6 mM KCl, 12 mM sodium phosphate (pH 7.4) dibasic, 2 mg/ml BSA, and 50% glycerol. Store at -20°C. Do not aliquot the antibody.. Protocol Available protocols: Western Blotting Specificity / Sensitivity Tri-Methyl-Histone H3 (Lys27) (C36B11) Rabbit Monoclonal Antibody (HRP Conjugate) detects endogenous levels of histone H3 only when tri-methylated on Lys27. This antibody conjugate does not cross-react with non-methylated, mono-methylated or di-methylated Lys27. In addition, this antibody conjugate does not cross-react with mono-methylated, di-methylated or tri-methylated histone H3 at Lys4, Lys9, Lys36 or Histone H4 at Lys20. Species Reactivity: Human, Mouse, Rat, Monkey Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to the amino terminus of histone H3 in which Lys27 is tri-methylated. Background The nucleosome, made up of four core histone proteins (H2A, H2B, H3, and H4), is the primary building block of chromatin. Originally thought to function as a static scaffold for DNA packaging, histones have now been shown to be dynamic proteins, undergoing multiple types of post-translational modifications, including acetylation, phosphorylation, methylation, and ubiquitination (1). Histone methylation is a major determinant for the formation of active and inactive regions of the genome and is crucial for the proper programming of the genome during development (2,3). Arginine methylation of histones H3 (Arg2, 17, 26) and H4 (Arg3) promotes transcriptional activation and is mediated by a family of protein arginine methyltransferases (PRMTs), including the co-activators PRMT1 and CARM1 (PRMT4) (4). In contrast, a more diverse set of histone lysine methyltransferases has been identified, all but one of which contain a conserved catalytic SET domain originally identified in the Su(var)3-9, Enhancer of zeste, and Trithorax proteins. Lysine methylation occurs primarily on histones H3 (Lys4, 9, 27, 36, 79) and H4 (Lys20) and has been implicated in both transcriptional activation and silencing (4). Methylation of these lysine residues coordinates the recruitment of chromatin modifying enzymes containing methyl-lysine binding modules such as chromodomains (HP1, PRC1), PHD fingers (BPTF, ING2), tudor domains (53BP1), and WD-40 domains (WDR5) (5-8). The discovery of histone demethylases, such as PADI4, LSD1, JMJD1, JMJD2, and JHDM1, has shown that methylation is a reversible epigenetic marker (9).t Alternate Names H3; H3 clustered histone 1; H3 histone family, member A; H3/A; H31; H3C1; H3C10; H3C11; H3C12; H3C2; H3C3; H3C4; H3C6; H3C7; H3C8; H3FA; H3FB; H3FC; H3FC HIST1H3C; H3FD; H3FF; H3FH; H3FI; H3FJ; H3FK; H3FL; HIST1H3A; HIST1H3B; HIST1H3C; HIST1H3D; HIST1H3E; HIST1H3F; HIST1H3G; HIST1H3H; HIST1H3I; HIST1H3J; histone 1, H3a; histone cluster 1 H3 family member a; histone cluster 1, H3a; Histone H3; Histone H3.1; Histone H3/a; Histone H3/b; Histone H3/c; Histone H3/d; Histone H3/f; Histone H3/h; Histone H3/i; Histone H3/j; Histone H3/k; Histone H3/l Specification REACTIVITY: H M R Mk SENSITIVITY: Endogenous MW (kDa): 17 Source/Isotype: Rabbit IgG