Irreversible inhibition of dihydrodipicolinate synthase by 4-oxo-heptenedioic acid analogues
作者:Berin A. Boughton、Michael D.W. Griffin、Paul A. O’Donnell、Renwick C.J. Dobson、Matthew A. Perugini、Juliet A. Gerrard、Craig A. Hutton
DOI:10.1016/j.bmc.2008.10.026
日期:2008.12
We report the synthesis of (2E,5E)-4-oxoheptadienedioic acid and (2E)-4-oxoheptenedioic acid and evaluation of both diester and diacid analogues as inhibitors of bacterial dihydrodipicolinate synthase. Enzyme kinetic studies allowed the determination of second-order rate constants of inactivation; and substrate co-incubation studies have shown the inhibitors act at the active-site. Mass spectrometric
我们报告了(2E,5E)-4-氧庚二烯二酸和(2E)-4-氧庚二烯酸的合成以及作为细菌二氢二吡啶甲酸酯合酶抑制剂的二酯和二酸类似物的评价。酶动力学研究可以确定失活的二级速率常数。底物共孵育研究表明,抑制剂在活性位点起作用。质谱分析进一步探索了酶-抑制剂的相互作用并确定了酶烷基化的位点。