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

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Published on: April 1, 2016

Expanding the metabolic engineering toolbox with directed evolution.

Joseph Abatemarco1, Andrew Hill, Hal S Alper

  • 1Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, USA.

Biotechnology Journal
|July 17, 2013
PubMed
Summary
This summary is machine-generated.

Directed evolution enhances cellular factories for producing valuable chemicals from renewable resources. This review explores using directed evolution for enzymes, regulatory elements, and genomes to improve metabolic engineering and product yields.

Keywords:
Directed evolutionMetabolic engineeringPathway engineeringSynthetic biology

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Area of Science:

  • Synthetic Biology
  • Metabolic Engineering
  • Protein Engineering

Background:

  • Cellular systems are engineered into factories for producing high-value chemicals from renewable feedstocks.
  • Metabolic engineering requires an expanded toolbox, with protein engineering and directed evolution playing critical roles.
  • Traditional metabolic engineering relies on gene overexpression and deletion.

Purpose of the Study:

  • To review the application of directed evolution in conjunction with metabolic engineering to improve product yields.
  • To demonstrate how evolving cellular parts can achieve metabolic pathway engineering goals.
  • To discuss limitations in screening technology for metabolic pathway-directed evolution.

Main Methods:

  • Application of directed evolution on catalytic and non-catalytic traits of enzymes.
  • Directed evolution applied to regulatory elements.
  • Directed evolution applied to whole genomes within a metabolic engineering context.

Main Results:

  • Directed evolution offers an alternative to traditional gene manipulation for metabolic pathway engineering.
  • Evolving cellular parts can be a viable strategy for improving product yields.
  • Limitations in screening technology currently hinder full implementation.

Conclusions:

  • Directed evolution is a powerful tool for advancing metabolic engineering.
  • Expanding directed evolution applications can optimize cellular factories.
  • Overcoming screening limitations is crucial for future progress.