(S)-PFI-2 (hydrochloride)

(S)-PFI-2 hydrochloride is an inhibitor of lysine methyltransferase SETD7 and is approximately 500-fold more active than its enantiomer (R)-PFI-2. (R)-PFI-2 is a cofactor-dependent and substrate-competitive inhibitor. (R)-PFI-2 can occupy the substrate peptide binding groove of SETD7 (including the catalytic lysine binding channel) and interact with the cofactor The donor methyl group is in direct contact. However, (S)-PFI-2 was not observed to have the same interaction as (R)-PFI-2[1][2].

[1]Niu Y, et al. Revealing inhibition difference between PFI-2 enantiomers against SETD7 by molecular dynamics simulations, binding free energy calculations and unbinding pathway analysis. Sci Rep. 2017 Apr 18;7:46547.|[2]Barsyte-Lovejoy D, et al. (R)-PFI-2 is a potent and selective inhibitor of SETD7 methyltransferase activity in cells. Proc Natl Acad Sci U S A. 2014 Sep 2;111(35):12853-8.