Michael Acceptor-Containing Coenzyme A Analogues As Inhibitors of the Atypical Coenzyme A Disulfide Reductase from <i>Staphylococcus aureus</i>
作者:Renier van der Westhuyzen、Erick Strauss
DOI:10.1021/ja106204m
日期:2010.9.22
β-unsaturated ester, ketone, and sulfone moieties were prepared by chemo-enzymatic synthesis as inhibitors of coenzyme A disulfide reductase (CoADR), a proven and as yet unexploited drug target in Staphylococcus aureus. Among these Michael acceptor-containing CoA analogues, which were designed to target CoADR's single essential active site cysteine for conjugate addition, a phenyl vinyl sulfone-containing analogue
辅酶 A (CoA) 类似物含有 α,β-不饱和酯、酮和砜部分,通过化学酶促合成作为辅酶 A 二硫化物还原酶 (CoADR) 的抑制剂制备,辅酶 A 二硫化物还原酶 (CoADR) 是金黄色葡萄球菌中已证实但尚未开发的药物靶点。在这些含有迈克尔受体的 CoA 类似物中,这些类似物旨在针对 CoADR 的单一必需活性位点半胱氨酸进行偶联物加成,其中一种含有苯基乙烯基砜的类似物显示出最有效的抑制作用,竞争性 K(i) 为~40 nM,并且时间依赖于失活的二阶失活常数约为 40,000 s(-1)·M(-1)。我们的结果表明,亲电子底物类似物应被视为其他医学相关二硫键还原酶的潜在抑制剂。