In vivo continuous evolution of genes and pathways in yeast.
In vivo continuous evolution of genes and pathways in yeast.
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DOI:
10.1038/ncomms13051
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发表时间:
2016-10-17
影响因子:
16.6
通讯作者:
Alper, Hal S.
中科院分区:
文献类型:
--
作者:
Crook, Nathan;Abatemarco, Joseph;Sun, Jie;Wagner, James M.;Schmitz, Alexander;Alper, Hal S.
Directed evolution remains a powerful, highly generalizable approach for improving the performance of biological systems. However, implementations in eukaryotes rely either on in vitro diversity generation or limited mutational capacities. Here we synthetically optimize the retrotransposon Ty1 to enable in vivo generation of mutant libraries up to 1.6 × 107 l−1 per round, which is the highest of any in vivo mutational generation approach in yeast. We demonstrate this approach by using in vivo-generated libraries to evolve single enzymes, global transcriptional regulators and multi-gene pathways. When coupled to growth selection, this approach enables in vivo continuous evolution (ICE) of genes and pathways. Through a head-to-head comparison, we find that ICE libraries yield higher-performing variants faster than error-prone PCR-derived libraries. Finally, we demonstrate transferability of ICE to divergent yeasts, including Kluyveromyces lactis and alternative S. cerevisiae strains. Collectively, this work establishes a generic platform for rapid eukaryotic-directed evolution across an array of target cargo. Directed evolution is a powerful technique for generating improved biological systems through repeated rounds of mutagenesis and selection. Here the authors engineer the yeast retrotransposon Ty1 to enable the creation of large mutant libraries in vivo and use this system to generate improved variants of single enzymes and multigene pathways.
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影响因子:
5.6
作者:
Chen, ZL;Zhao, HM
通讯作者:
Zhao, HM
影响因子:
48
作者:
Gibson, Daniel G.;Young, Lei;Smith, Hamilton O.
通讯作者:
Smith, Hamilton O.
DOI:
10.1073/pnas.88.3.936
发表时间:
1991-02-01
影响因子:
11.1
作者:
CURCIO, MJ;GARFINKEL, DJ
通讯作者:
GARFINKEL, DJ
影响因子:
5.6
作者:
Brustad, Eric M.;Lelyveld, Victor S.;Snow, Christopher D.;Crook, Nathan;Jung, Sang Taek;Martinez, Francisco M.;Scholl, Timothy J.;Jasanoff, Alan;Arnold, Frances H.
通讯作者:
Arnold, Frances H.
影响因子:
16.6
作者:
Dickinson, Bryan C.;Packer, Michael S.;Badran, Ahmed H.;Liu, David R.
通讯作者:
Liu, David R.