Improving the stability and catalyst lifetime of the halogenase RebH by directed evolution.
Improving the stability and catalyst lifetime of the halogenase RebH by directed evolution.
复制标题
DOI:
10.1002/cbic.201300780
复制
发表时间:
2014-06-16
期刊:
影响因子:
3.2
通讯作者:
Lewis, Jared C.
中科院分区:
文献类型:
--
作者:
Poor, Catherine B.;Andorfer, Mary C.;Lewis, Jared C.
We previously reported that the halogenase RebH catalyzes selective halogenation of several heterocycles and carbocycles, but product yields were limited by enzyme instability. Here, we use directed evolution to engineer a RebH variant, 3-LR, with a Topt over 5 °C higher than that of wild type, and 3-LSR, with a Tm 18 °C higher than that of wild type. These enzymes provided significantly (up to 4-fold) improved conversions for halogenation of tryptophan and several non-natural substrates. This initial demonstration of RebH evolution not only provides improved enzymes for immediate synthetic applications, but also establishes a robust protocol for further halogenase evolution.
登录
查看更多内容
影响因子:
--
作者:
Mate, Diana;Garcia-Burgos, Carlos;Alcalde, Miguel
通讯作者:
Alcalde, Miguel
影响因子:
4.3
作者:
Kumar, Rakesh;Sharma, Monika;Kaur, Jagdeep
通讯作者:
Kaur, Jagdeep
影响因子:
2.9
作者:
Bitto, Eduard;Huang, Yu;Phillips, George N., Jr.
通讯作者:
Phillips, George N., Jr.
影响因子:
3.4
作者:
LIAO, HH
通讯作者:
LIAO, HH
影响因子:
3.2
作者:
Lewis, Jared C.;Mantovani, Simone M.;Fu, Yu;Snow, Christopher D.;Komor, Russell S.;Wong, Chi-Huey;Arnold, Frances H.
通讯作者:
Arnold, Frances H.