Synthesis and evaluation of M. tuberculosis salicylate synthase (MbtI) inhibitors designed to probe plasticity in the active site
作者:Alexandra Manos-Turvey、Katie M. Cergol、Noeris K. Salam、Esther M. M. Bulloch、Gamma Chi、Angel Pang、Warwick J. Britton、Nicholas P. West、Edward N. Baker、J. Shaun Lott、Richard J. Payne
DOI:10.1039/c2ob26736e
日期:——
Mycobacterium tuberculosis salicylate synthase (MbtI) catalyses the first committed step in the biosynthesis of mycobactin T, an iron-chelating siderophore essential for the virulence and survival of M. tuberculosis. Co-crystal structures of MbtI with members of a first generation inhibitor library revealed large inhibitor-induced rearrangements within the active site of the enzyme. This plasticity
结核分枝杆菌水杨酸合酶(MBTI)催化在分支杆菌生长素T,为的毒力和存活的铁螯合铁载体必需的生物合成的第一个关键步骤的结核分枝杆菌。MbtI与第一代抑制剂库的成员的共晶体结构揭示了酶的活性位点内大抑制剂诱导的重排。MbtI活性位点的可塑性通过基于2,3-二羟基苯甲酸酯骨架的抑制剂文库的制备,该骨架具有一系列取代的丙烯酸苯酯侧链附加在C3位上。大多数化合物对酶表现出中等的抑制活性,抑制常数在微摩尔范围内,而几种二甲基酯变体在体外具有有希望的抗结核活性。