Altering the Regioselectivity of a Nitroreductase in the Synthesis of Arylhydroxylamines by Structure-Based Engineering
作者:Jing Bai、Yong Zhou、Qi Chen、Qing Yang、Jun Yang
DOI:10.1002/cbic.201500070
日期:2015.5.26
The regioselectivity of nitroreductase NfsB from E. coli toward 2,4‐dinitrotoluene was shifted from the 4‐NO2 group to the 2‐NO2 group without loss of activity, by introducing three mutations: T41L, N71S, and F124W. This study provides an example of a tailored enzyme for regioselective synthesis of the target arylhydroxylamines.
通过引入三个突变:T41L,N71S和F124W,从大肠杆菌到2,4-二硝基甲苯的硝基还原酶NfsB的区域选择性从4-NO 2组转变为2-NO 2组,而不会丧失活性。该研究提供了用于目标芳基羟胺的区域选择性合成的定制酶的实例。