Unprecedented Binding Mode of Hydroxamate-Based Inhibitors of Glutamate Carboxypeptidase II: Structural Characterization and Biological Activity
作者:Zora Novakova、Krystyna Wozniak、Andrej Jancarik、Rana Rais、Ying Wu、Jiri Pavlicek、Dana Ferraris、Barbora Havlinova、Jakub Ptacek、Jan Vavra、Niyada Hin、Camilo Rojas、Pavel Majer、Barbara S. Slusher、Takashi Tsukamoto、Cyril Barinka
DOI:10.1021/acs.jmedchem.5b01806
日期:2016.5.26
models of neurological disorders associated with excessive activation of glutamatergic systems. Here we report synthesis, structural characterization, and biological activity of new hydroxamic acid-based inhibitors with nanomolar affinity for human GCPII. Crystal structures of GCPII/hydroxamate complexes revealed an unprecedented binding mode in which the putative P1′ glutarate occupies the spacious entrance
在与谷氨酸能系统过度激活有关的神经系统疾病的临床前模型中,谷氨酸羧肽酶II(GCPII)的抑制作用是有效的。在这里,我们报告合成,结构表征和具有纳摩尔摩尔对人GCPII的新型基于异羟肟酸的抑制剂的生物活性。GCPII /异羟肟酸酯复合物的晶体结构揭示了前所未有的结合模式,其中推定的P1'谷氨酸占据了宽敞的入口漏斗,而不是保守的结合谷氨酸的S1'口袋。这种独特的结合模式为结构-活性关系数据提供了机械解释,最值得注意的是缺乏对映体特异性以及对作为规范谷氨酸部分的取代基的大体积/疏水功能的耐受性。