Identification and Characterization of Novel Inhibitors of Mammalian Aspartyl Aminopeptidase
作者:Yuanyuan Chen、Hong Tang、William Seibel、Ruben Papoian、Ki Oh、Xiaoyu Li、Jianye Zhang、Marcin Golczak、Krzysztof Palczewski、Philip D. Kiser
DOI:10.1124/mol.114.093070
日期:2014.8
as tools to study its biologic functions. Twenty-three confirmed hits inhibited DNPEP-catalyzed hydrolysis of angiotensin II with micromolar potency. A counter screen against glutamyl aminopeptidase (ENPEP), an enzyme with substrate specificity similar to that of DNPEP, identified eight DNPEP-selective inhibitors. Structure-activity relationships and modeling studies revealed structural features common
天冬氨酰氨肽酶 (DNPEP) 与血管紧张素信号传导和内体运输的控制有关,但其精确的生物学作用仍未完全确定。我们对约 25,000 个小分子进行了高通量筛选,以鉴定 DNPEP 抑制剂,用作研究其生物学功能的工具。23 次确认的命中抑制了 DNPEP 催化的血管紧张素 II 水解,具有微摩尔效力。谷氨酰氨肽酶 (ENPEP) 是一种底物特异性与 DNPEP 相似的酶,通过反筛选确定了八种 DNPEP 选择性抑制剂。构效关系和建模研究揭示了已鉴定抑制剂共有的结构特征,包括金属螯合基团和可与酶活性位点部分相互作用的带电或极性部分。