GSK 5959 exhibits >100-fold selectivity for BRPF1 (IC50 = 80 nM) over a panel of 35 other bromodomains, including BRPF2/3 and BET family bromodomains. Inhibits BRPF1 interaction with histone H3.3, which is involved in the epigenetic regulation of gene expression and have been implicated in human cancer. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.