Enzyme evolution: innovation is easy, optimization is complicated

Matilda S. Newton, Vickery L. Arcus, Monica L. Gerth, Wayne M. Patrick

Research output: Contribution to journalReview articlepeer-review

30 Scopus citations

Abstract

Enzymes have been evolving to catalyze new chemical reactions for billions of years, and will continue to do so for billions more. Here, we review examples in which evolutionary biochemists have used big data and high-throughput experimental tools to shed new light on the enormous functional diversity of extant enzymes, and the evolutionary processes that gave rise to it. We discuss the role that gene loss has played in enzyme evolution, as well as the more familiar processes of gene duplication and divergence. We also review insightful studies that relate not only catalytic activity, but also a host of other biophysical and cellular parameters, to organismal fitness. Finally, we provide an updated perspective on protein engineering, based on our new-found appreciation that most enzymes are sloppy and mediocre.

Original languageEnglish (US)
Pages (from-to)110-116
Number of pages7
JournalCurrent Opinion in Structural Biology
Volume48
DOIs
StatePublished - Feb 2018

Bibliographical note

Funding Information:
This work was supported by the Marsden Fund (VLA/MLG/WMP) and by Smart Ideas grants from the New Zealand Ministry of Business, Innovation and Employment (VLA/MLG/WMP). WMP is the grateful recipient of a Rutherford Discovery Fellowship.

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