Inhibitory Evaluation of αPMM/PGM from <i>Pseudomonas aeruginosa</i>: Chemical Synthesis, Enzyme Kinetics, and Protein Crystallographic Study
作者:Jian-She Zhu、Kyle M. Stiers、Ebrahim Soleimani、Brandon R. Groves、Lesa J. Beamer、David L. Jakeman
DOI:10.1021/acs.joc.9b01305
日期:2019.8.2
(1–3), 1,2-cyclic phosph(on)ate analogues (4–6), isosteric methylene phosphono analogues (7 and 8), and 6-fluoro-αG1P (9), were synthesized and assessed as potential time-dependent or reversible αPMM/PGM inhibitors. The resulting kinetic data were consistent with the crystallographic structures of the highly homologous Xanthomonas citri αPGM with inhibitors 3 and 7–9 binding to the enzyme active site (1
铜绿假单胞菌的α-磷酸甘露糖突变酶/磷酸葡糖突变酶(αPMM/ PGM)参与细菌细胞壁的组装,并与铜绿假单胞菌的毒力有关,但是很少有研究针对这种重要的革兰氏阴性细菌人类病原体抑制αPMM/ PGM。四个结构上不同的α- d -glucopyranose -1-磷酸(αG1P)衍生物,包括1- Ç -fluoromethylated类似物(1 - 3),1,2-环亚磷(膦)吃类似物(4 - 6),电子等排亚甲基膦类似物(7和8)和6-氟-αG1P(9)合成并评估为潜在的时间依赖性或可逆性αPMM/ PGM抑制剂。将所得的动力学数据与高度同源的晶体结构相一致黄单胞菌柑橘αPGM用抑制剂3和7 - 9结合于酶活性位点(1.65-1.9)。这些结构和动力学方面的见识将增强未来αPMM/ PGM抑制剂的设计。