Analogues with Fluorescent Leaving Groups for Screening and Selection of Enzymes That Efficiently Hydrolyze Organophosphorus Nerve Agents
作者:Luis Briseño-Roa、Jim Hill、Stuart Notman、David Sellers、Andy P. Smith、Christopher M. Timperley、Janet Wetherell、Nichola H. Williams、Gareth R. Williams、Alan R. Fersht、Andrew D. Griffiths
DOI:10.1021/jm050518j
日期:2006.1.1
and dimefox, and the nerve agents DFP, tabun, sarin, cyclosarin, soman, VX, and Russian-VX. Data from inhibition of acetylcholinesterase, in vivo toxicity tests of a representative analogue (cyclosarin), and kinetic studies with phosphotriesterase (PTE) from Pseudomonas diminuta, and a mammalian serum paraoxonase (PON1), confirmed that the analogues mimic the parent nerve agents effectively. They are
有效水解剧毒有机磷神经毒剂的酶可能被用作医疗对策。由于目前尚不清楚足够活跃的酶,我们合成了十二种具有 3-氯-7-氧基-4-甲基香豆素离去基团的有机磷神经毒剂荧光类似物作为高通量酶筛选的探针。这组包括杀虫剂对氧磷、对硫磷和二甲硫磷的类似物,以及神经毒剂 DFP、塔崩、沙林、环沙林、索曼、VX 和俄罗斯-VX。来自乙酰胆碱酯酶抑制的数据、代表性类似物(环沙林)的体内毒性试验以及来自 Pseudomonas diminuta 的磷酸三酯酶 (PTE) 和哺乳动物血清对氧磷酶 (PON1) 的动力学研究证实,这些类似物有效地模拟了亲本神经毒剂。