Protein arginine N-methyltransferase 3 (PRMT3, ) is a predominantly cytoplasmic enzyme that is constitutively expressed. SGC707 is a potent, selective allosteric inhibitor of PRMT3 (IC50 = 50 nM). It inhibits the methylation of histones in cells with an IC50 value below 1 μM. XY1 is a close analog of SGC707 that is completely inactive against PRMT3 at concentrations as high as 100 μM. It is intended to be used as a negative control for SGC707 in studies involving PRMT3 action. See the Structural Genomics Consortium (SGC) website for more information.
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