S-(N-Aryl-N-hydroxycarbamoyl)glutathione Derivatives Are Tight-Binding Inhibitors of Glyoxalase I and Slow Substrates for Glyoxalase II
作者:Nunna S. R. K. Murthy、Tina Bakeris、Malcolm J. Kavarana、Diana S. Hamilton、Yin Lan、Donald J. Creighton
DOI:10.1021/jm00040a007
日期:1994.7
are due to the fact that the derivatives are hydrophobic analogs of the enediol(ate) intermediate associated with the glyoxalase Ireaction. The derivatives also proved to be slow substrates for the thioester hydrolase glyoxalase II (bovine liver). Compounds of this type are of interest as potential tumor-selective anticancer agents, based on the abnormally low levels of glyoxalase II activity in some
S-(N-芳基-N-羟基氨基甲酰基)谷胱甘肽衍生物是抗癌目标酶乙二醛酶I的强大竞争性抑制剂。确实,Np-溴苯基衍生物是人类红细胞中最强的酶抑制剂,据报道(Ki = 1.4 x 10 (-8)M)。结构活性的相关性表明,该衍生物对人和酵母乙二醛酶I的亲和力高是由于该衍生物是与乙二醛酶I反应相关的烯二醇(酸酯)中间体的疏水类似物。衍生物也被证明是硫酯水解酶乙二醛酶II(牛肝)的慢底物。基于某些类型的癌细胞中乙二醛酶II活性异常低的水平,这类化合物作为潜在的肿瘤选择性抗癌剂受到关注。