Structure-Based Design, Synthesis, and in vitro Evaluation of Bisubstrate Inhibitors for CatecholO-Methyltransferase (COMT)
作者:Birgit Masjost、Patrick Ballmer、Edilio Borroni、Gerhard Zürcher、Fritz K. Winkler、Roland Jakob-Roetne、François Diederich
DOI:10.1002/(sici)1521-3765(20000317)6:6<971::aid-chem971>3.0.co;2-0
日期:2000.3.17
The enzyme catechol O-methyltransferase (COMT) catalyzes the Me group transfer from the cofactor S-adenosylmethionine (SAM) to the hydroxy group of catechol substrates. Potential bisubstrate inhibitors of COMT were developed by structure-based design and synthesized. The compounds were tested for in vitro inhibitory activity against COMT obtained from rat liver, and the inhibition kinetics were examined
邻苯二酚O-甲基转移酶(COMT)催化Me基从辅因子S-腺苷甲硫氨酸(SAM)转移至邻苯二酚底物的羟基。通过基于结构的设计开发并合成了潜在的COMT双底物抑制剂。测试了这些化合物对从大鼠肝脏获得的COMT的体外抑制活性,并检查了辅因子和底物的结合位点的抑制动力学。发现设计的分子之一是COMT的双底物抑制剂,IC50 = 2 microM。它对SAM具有竞争性动力学,对儿茶酚结合位点具有非竞争性动力学。建立了有用的结构-活性关系,为将来设计COMT双底物抑制剂提供重要指导。