Studies on the inhibition of sphingosine-1-phosphate lyase by stabilized reaction intermediates and stereodefined azido phosphates
作者:Pol Sanllehí、José-Luís Abad、Jordi Bujons、Josefina Casas、Antonio Delgado
DOI:10.1016/j.ejmech.2016.08.008
日期:2016.11
te lyase have been designed and tested on the bacterial (StS1PL) and the human (hS1PL) enzymes. Amino phosphates 1, 12, and 32, mimicking the intermediate aldimines of the catalytic process, were weak inhibitors on both enzyme sources. On the other hand, a series of stereodefined azido phosphates, resulting from the replacement of the amino group of the natural substrates with an azido group, afforded
已经设计了两种PLP依赖性酶鞘氨醇-1-磷酸裂解酶抑制剂,并在细菌(StS1PL)和人(hS1PL)酶上进行了测试。氨基磷酸盐1,12,和32,模仿催化过程的中间醛亚胺,分别在两个酶来源弱抑制剂。另一方面,通过用叠氮基团取代天然底物的氨基而产生的一系列立体定义的叠氮基磷酸酯,在两种酶源上均提供了低微摩尔范围内的竞争性抑制剂。这种相似的行为代表了两种酶在其活性位点水平上报道的结构相似性的实验证据。有趣的是,反-非天然对映异构体系列的异构体,是hS1PL上最有效的抑制剂。