Efficient molecular evolution to generate enantioselective enzymes using a dual-channel microfluidic droplet screening platform.
Efficient molecular evolution to generate enantioselective enzymes using a dual-channel microfluidic droplet screening platform.
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使用双通道微流控液滴筛选平台进行有效分子进化以产生对映选择性酶
DOI:
10.1038/s41467-018-03492-6
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发表时间:
2018-03-12
影响因子:
16.6
通讯作者:
Yang GY
中科院分区:
文献类型:
--
作者:
Ma F;Chung MT;Yao Y;Nidetz R;Lee LM;Liu AP;Feng Y;Kurabayashi K;Yang GY
Directed evolution has long been a key strategy to generate enzymes with desired properties like high selectivity, but experimental barriers and analytical costs of screening enormous mutant libraries have limited such efforts. Here, we describe an ultrahigh-throughput dual-channel microfluidic droplet screening system that can be used to screen up to ~107enzyme variants per day. As an example case, we use the system to engineer the enantioselectivity of an esterase to preferentially produce desired enantiomers of profens, an important class of anti-inflammatory drugs. Using two types of screening working modes over the course of five rounds of directed evolution, we identify (from among 5 million mutants) a variant with 700-fold improved enantioselectivity for the desired (S)-profens. We thus demonstrate that this screening platform can be used to rapidly generate enzymes with desired enzymatic properties like enantiospecificity, chemospecificity, and regiospecificity.
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DOI:
10.1073/pnas.1506460112
发表时间:
2015-08-25
影响因子:
11.1
作者:
Huang, Mingtao;Bai, Yunpeng;Nielsen, Jens
通讯作者:
Nielsen, Jens
影响因子:
16.6
作者:
Colin PY;Kintses B;Gielen F;Miton CM;Fischer G;Mohamed MF;Hyvönen M;Morgavi DP;Janssen DB;Hollfelder F
通讯作者:
Hollfelder F
影响因子:
--
作者:
Kintses, Balint;Hein, Christopher;Hollfelder, Florian
通讯作者:
Hollfelder, Florian
影响因子:
2.4
作者:
Obexer, Richard;Pott, Moritz;Hilvert, Donald
通讯作者:
Hilvert, Donald
影响因子:
6.1
作者:
Baret, Jean-Christophe;Miller, Oliver J.;Griffiths, Andrew D.
通讯作者:
Griffiths, Andrew D.