This peptide is histone H3 with acetylation at Lys4. It is biotinylated through a C-terminal GGK linker. This post-translationally modified histone peptide is found in humans, Tetrahymena thermophila, Schizosaccharomyces pombe , and mice. Acetylation at Lys4 is controlled by Mst1. This peptide acts as a chromodomain switch by weakening the interaction between Chp1 and the H3K9 methylated tail, thus facilitating binding of HP1 proteins. Provided at >95% peptide purity, this peptide was dissolved in distilled water at 1 mg/ml and re-lyophilized to powder form.
Xhemalce, B. and T Kouzarides. Gene Dev24, 647 (2010); Garcia, B. et al. J Biol Chem282, 7641 (2007).
Sequence (One-Letter Code)
Sequence (Three-Letter Code)
H - Ala - Arg - Thr - Lys(Ac) - Gln - Thr - Ala - Arg - Lys - Ser - Thr - Gly - Gly - Lys - Ala - Pro - Arg - Lys - Gln - Leu - Ala - Gly - Gly - Lys(biotin) - OH