GlaxoSmithKline releases EZH2 inhibitor as part of SGC epigenetics initiative

GlaxoSmithKline has developed a potent, selective, cell-active EZH2 inhibitor, GSK343, and has made this available as a chemical probe as part of the SGC epigenetics initiative.  The histone H3-lysine 27 (H3K27) methyltransferase EZH2 plays a critical role in regulating gene expression, and its aberrant activity is linked to the onset and progression of cancer.  GSK343 inhibits EZH2 with an IC50 of 4nM and is over 1000-fold selective for other HMTs except EZH1 (60-fold selectivity).  GSK343 inhibits H3K27 methylation in HCC1806 cells with an IC50 of <200nM as measured by immunofluorescence. For more details visit the GSK343 website.

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