Setting the stage for evolution of a new enzyme.

Setting the stage for evolution of a new enzyme.
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DOI:
10.1016/j.sbi.2021.03.001
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发表时间:
2021-08
影响因子:
6.8
通讯作者:
Copley SD
Copley SD
中科院分区:
生物学2区
文献类型:
--
作者:
Copley SD

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数十亿年来,新型酶的进化推动了地球上生命的多样化。从祖先重建和实验室进化中可以获得为新酶进化奠定基础的事件的见解。祖先重建可以揭示先前存在的蛋白质中混杂活性的出现,以及随后增强新活性的突变的影响。实验室进化通过揭示基因组中其他地方的突变,间接地提高了一种新的重要酶活性的水平,提供了一个更全面的观点。这篇综述将重点介绍最近的研究,从这些互补的观点探索一种新酶的早期进化阶段。
Evolution of novel enzymes has fueled the diversification of life on earth for billions of years. Insights into events that set the stage for evolution of a new enzyme can be obtained from ancestral reconstruction and laboratory evolution. Ancestral reconstruction can reveal the emergence of a promiscuous activity in a pre-existing protein and the impact of subsequent mutations that enhance a new activity. Laboratory evolution provides a more holistic view by revealing mutations elsewhere in the genome that indirectly enhance the level of a newly important enzymatic activity. This review will highlight recent studies that probe the early stages of evolution of a new enzyme from these complementary points of view.
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