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Related Concept Videos

In vitro Mutagenesis01:16

In vitro Mutagenesis

To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.

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Related Experiment Video

Updated: Jun 13, 2026

A Protocol for Functional Assessment of Whole-Protein Saturation Mutagenesis Libraries Utilizing High-Throughput Sequencing
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High-throughput mutagenesis using a two-fragment PCR approach.

Franziska M Heydenreich1,2, Tamara Miljuš3,4, Rolf Jaussi3

  • 1Laboratory of Biomolecular Research, Paul Scherrer Institute, 5232, Villigen PSI, Switzerland. franziska.heydenreich@psi.ch.

Scientific Reports
|July 30, 2017
PubMed
Summary

This study introduces a high-throughput mutagenesis pipeline that reduces PCR artifacts for efficient protein engineering. The new method enables faster and more economical generation of large mutant libraries for protein research.

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Area of Science:

  • Protein engineering
  • Molecular biology
  • Biotechnology

Background:

  • Site-directed scanning mutagenesis is crucial for studying protein functionality and designing stabilized proteins.
  • Generating large mutant libraries is currently challenging, expensive, and time-consuming.
  • PCR artifacts like misannealing and primer repeats hinder mutagenesis efficiency.

Purpose of the Study:

  • To develop a high-throughput mutagenesis pipeline that minimizes PCR artifacts.
  • To improve the efficiency and reduce the cost of generating large mutant libraries.
  • To facilitate structural and biophysical studies through rapid protein engineering.

Main Methods:

  • A two-fragment PCR approach using separate reactions for mutagenesis primers.
  • In vitro assembly of PCR-generated DNA fragments.
  • Implementation of a high-throughput pipeline integrating these methods.

Main Results:

  • The pipeline significantly reduces common PCR artifacts encountered in mutagenesis.
  • Despite increased labor, the method proves highly efficient for creating extensive mutant libraries.
  • Successful generation of large-scale mutant libraries for protein engineering applications.

Conclusions:

  • The developed high-throughput mutagenesis pipeline offers an efficient solution for generating large mutant libraries.
  • This approach overcomes limitations of traditional methods, enabling faster protein engineering.
  • The pipeline is valuable for structural, biophysical, and functional studies requiring numerous protein variants.