Design and synthesis of some substrate analog inhibitors of phospholipase A2 and investigations by NMR and molecular modeling into the binding interactions in the enzyme-inhibitor complex
作者:Colin Bennion、Stephen Connolly、Nigel P. Gensmantel、Catherine Hallam、Clive G. Jackson、William U. Primrose、Gordon C. K. Roberts、David H. Robinson、Pritpal K. Slaich
DOI:10.1021/jm00094a003
日期:1992.8
A series of substrate analogue inhibitors of pancreatic phospholipase A2 has been designed and synthesized. The compounds were tested in a novel dual-screening system based on parallel assays with monomeric and micellar substrates. Intermolecular nuclear Overhauser effects between vinylic protons on one inhibitor and identified active site residues on the bovine pancreatic enzyme have been observed
已经设计和合成了一系列胰磷脂酶A2的底物类似物抑制剂。在基于单体和胶束底物平行测定的新型双重筛选系统中对化合物进行了测试。在酶抑制剂复合物的溶液NMR研究中已观察到一种质子在一种抑制剂上的乙烯基质子与牛胰腺酶上已确定的活性位点残基之间的分子间核Overhauser效应。从生化结果和NMR数据都可以推论,这种抑制剂与磷脂酶A2的活性位点之间的相互作用方式基本上是相同的,而不管是否存在聚集的磷脂表面。已开发出结合了二维NMR数据的酶与抑制剂之间结合的模型。