Bivalent inhibitors of glutathione S-transferase: The effect of spacer length on isozyme selectivity
作者:Dean Y. Maeda、Sumit S. Mahajan、William M. Atkins、John A. Zebala
DOI:10.1016/j.bmcl.2006.04.041
日期:2006.7
cytosolic enzymes that catalyze the conjugation of glutathione with a variety of exogenous and endogenous electrophiles. High affinity, isozyme-specific inhibitors of GST are required for use as pharmacological tools as well as potential therapeutics. The design of selective inhibitors is hindered due to the broad substrate binding capabilities of the GST enzymes. GSTs are dimeric enzymes, and therefore
谷胱甘肽 S 转移酶 (GST) 是一种胞质酶,可催化谷胱甘肽与多种外源性和内源性亲电子试剂的结合。GST 的高亲和力、同工酶特异性抑制剂需要用作药理学工具和潜在的治疗剂。由于 GST 酶的广泛底物结合能力,选择性抑制剂的设计受到阻碍。GST 是二聚酶,因此为实现抑制剂选择性提供了独特的鉴别器:每个单体单元上结合位点之间的距离作为其四元组织的函数。制备了非选择性 GST 抑制剂 ethacrynic 酸的二价类似物,对 GST A1-1 同工酶的选择性超过 GST P1-1(IC50 值为 13.7 对 1022 nM,