GNE-272 is a selective inhibitor of CBP EP300 (IC50: 0.02, 0.03, and 13 μM for CBP, EP300, and BRD4, respectively) and a selective in vivo probe for CBP EP300.
CPI098 is a potent and selective inhibitors for the bromodomains of CREBBP EP300. CREBBP EP300 bromodomains play a critical role in regulatory T cell biology. T cell recruitment to tumors is a major mechanism of immune evasion by cancer cells.