Enzymatic Epoxide-Opening Cascades Catalyzed by a Pair of Epoxide Hydrolases in the Ionophore Polyether Biosynthesis
作者:Atsushi Minami、Akira Migita、Daiki Inada、Kinya Hotta、Kenji Watanabe、Hiroki Oguri、Hideaki Oikawa
DOI:10.1021/ol200100e
日期:2011.4.1
Our recent findings of the first epoxide hydrolase Lsd19, involved in lasalocid A biosynthesis, led us to investigate a long-standing controversial issue on the mechanism of enzymatic epoxide-opening cascades. The site-directed mutagenesis and domain dissection analysis to reveal the mechanism of the reaction catalyzed by Lsd19 is examined, especially in the role of acidic amino acid pair and catalytic
我们最近发现的第一个环氧水解酶Lsd19参与了lasalocid A的生物合成,这使我们研究了酶促环氧开放级联反应机制中一个长期存在的争议性问题。进行了定点诱变和结构域解剖分析,揭示了Lsd19催化反应的机理,特别是在酸性氨基酸对和催化结构域中的作用。