Chen Dongxing, Dong Guangping, Noinaj Nicholas, Huang Rong
Department of Medicinal Chemistry and Molecular Pharmacology, Center for Cancer Research, Institute for Drug Discovery , Purdue University , West Lafayette , Indiana 47907 , United States.
Markey Center for Structural Biology, Department of Biological Sciences and the Purdue Institute of Inflammation, Immunology and Infectious Disease , Purdue University , West Lafayette , Indiana 47907 , United States.
J Med Chem. 2019 Apr 11;62(7):3773-3779. doi: 10.1021/acs.jmedchem.9b00206. Epub 2019 Mar 27.
Protein N-terminal methyltransferase 1 (NTMT1) plays an important role in regulating mitosis and DNA repair. Here, we describe the discovery of a potent NTMT1 bisubstrate inhibitor 4 (IC = 35 ± 2 nM) that exhibits greater than 100-fold selectivity against a panel of methyltransferases. We also report the first crystal structure of NTMT1 in complex with an inhibitor, which revealed that 4 occupies substrate and cofactor binding sites of NTMT1.
蛋白质N-末端甲基转移酶1(NTMT1)在调节有丝分裂和DNA修复中起重要作用。在此,我们描述了一种有效的NTMT1双底物抑制剂4(IC = 35±2 nM)的发现,该抑制剂对一组甲基转移酶表现出大于100倍的选择性。我们还报告了NTMT1与抑制剂复合物的首个晶体结构,结果显示4占据了NTMT1的底物和辅因子结合位点。