Histone Acetyltransferase Targeted Library (814 compounds in total) offered by OTAVAchemicals has been designed to select compounds towards PCAF, p300, GCN5, and MOZ histoneacetyltransferases. The receptor-based virtual screen of Drug-like Green Collection against these four HATs was validated with a reference set of known histone acetyltransferase inhibitors obtained from ChemblDB.