A-395 is an antagonist of polycomb repressive complex 2 (PRC2) protein-protein interactions that potently inhibits the trimeric PRC2 complex (EZH2-EED-SUZ12) with an IC50 of 18 nM.
WDR5-0103 is a small molecule that binds a peptide-binding pocket on WDR5 (Kd = 450 nM), inhibiting the catalytic activity of the MLL core complex in vitro (IC50 = 39 M).
OICR-0547 is a closely related derivative of OICR-9429. OICR-9429 is a novel small-molecule antagonist of the Wdr5-MLL interaction, while OICR-0547 cannot bind to WDR5.