<i>Bacillus subtilis</i>Esterase (BS2) and its Double Mutant Have Different Selectivity in the Removal of Carboxyl Protecting Groups
作者:Efrosini Barbayianni、Christoforos G. Kokotos、Sebastian Bartsch、Christina Drakou、Uwe T. Bornscheuer、George Kokotos
DOI:10.1002/adsc.200900325
日期:2009.10
An esterase from Bacillus subtilis (BS2) and its double mutant E188W/M193C quickly hydrolyze n-butyl, n-propyl, methoxyethyl and allyl esters. The wild-type BS2 preferentially removes such esters from the γ-position of glutamate diesters, while the engineered enzyme has a reversed selectivity removing esters from the α-position of glutamate diesters. Automated docking and molecular dynamic simulations
从酯酶枯草芽孢杆菌(BS2)和它的双突变体E188W / M193C迅速水解Ñ丁基,Ñ丙基,甲氧基乙基和烯丙基酯。野生型BS2优先从谷氨酸二酯的γ-位除去这些酯,而工程酶具有相反的选择性,从谷氨酸二酯的α-位除去酯。进行了自动对接和分子动力学模拟,以了解不同区域选择性的分子原因。