GSK2807 Trifluoroacetate is a potent, selective and SAM-competitive inhibitor of SMYD3, with a Ki of 14 nM.
A high-resolution crystal structure reveals that GSK2807 bridges the gap between the SAM-binding pocket and the substrate lysine tunnel of SMYD3. GSK2807 is 24-fold selective for SMYD3 in comparison with the closely related enzyme SMYD2 (Ki=14±6 nM and 345±36 nM, respectively)[1].
References:
[1]. Van Aller GS, et al. Structure-Based Design of a Novel SMYD3 Inhibitor that Bridges the SAM-and MEKK2-Binding Pockets. Structure. 2016 May 3;24(5):774-781.