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Related Experiment Video

Updated: Jul 18, 2025

Directed Evolution Method in Saccharomyces cerevisiae: Mutant Library Creation and Screening
10:50

Directed Evolution Method in Saccharomyces cerevisiae: Mutant Library Creation and Screening

Published on: April 1, 2016

11.0K

Growth-coupled high throughput selection for directed enzyme evolution.

Zhengqun Li1, Yuting Deng1, Guang-Yu Yang1

  • 1State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.

Biotechnology Advances
|August 24, 2023
PubMed
Summary
This summary is machine-generated.

Growth-coupled in vivo high-throughput selection (GCHTS) accelerates enzyme evolution by linking host cell survival to protein function. This powerful method enables rapid screening of billions of variants for desired enzymatic properties.

Keywords:
AuxotrophDetoxificationDirected enzyme evolutionGrowth-coupled selectionHigh-throughputPACE, OrthoRep

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Area of Science:

  • Biotechnology
  • Molecular Biology
  • Enzyme Engineering

Background:

  • Directed enzyme evolution is crucial for developing enzymes with specific functions.
  • A major limitation is the absence of high-throughput methods for variant selection.
  • Growth-coupled in vivo high-throughput selection (GCHTS) offers a novel solution.

Purpose of the Study:

  • To review the strategies and recent advancements in GCHTS for enzyme evolution.
  • To highlight the potential of GCHTS in protein engineering.
  • To discuss challenges and future directions in the field.

Main Methods:

  • GCHTS links host cell survival to the desired properties of engineered enzymes.
  • Three primary GCHTS strategies are discussed: toxic compound elimination, auxotroph complementation, and reporter gene regulation.
  • Inclusion of recent developments like phage-assisted continuous evolution (PACE) and Orthogonal DNA Replication (OrthoRep).

Main Results:

  • GCHTS enables the screening of over 10^9 variants per experiment.
  • Successfully applied in directed evolution for enhanced catalytic activity, novel functions, and non-native substrate catalysis.
  • Demonstrates high throughput and scalability limited only by transformation efficiency.

Conclusions:

  • GCHTS is a powerful and versatile tool for accelerating enzyme evolution and protein engineering.
  • The discussed strategies and technologies offer significant advantages for creating enzymes with tailored properties.
  • Future prospects involve overcoming current challenges to further expand the utility of GCHTS.