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Updated: May 14, 2026
07:04
Site-Directed Mutagenesis for In Vitro and In Vivo Experiments Exemplified with RNA Interactions in Escherichia Coli
Published on: February 5, 2019
Protein engineering: single or multiple site-directed mutagenesis.
Pei-Chung Hsieh1, Romualdas Vaisvila
1New England Biolabs, Inc., Ipswich, MA, USA. hsieh@neb.com
Methods in Molecular Biology (Clifton, N.J.)
|February 21, 2013
Summary
We present two streamlined protocols for site-directed mutagenesis to study protein structure and function. These methods, using inverse PCR and Gibson Assembly, efficiently introduce single or multiple mutations, saving time and reagents.
Area of Science:
- Molecular Biology
- Protein Engineering
Background:
- Site-directed mutagenesis is crucial for understanding protein structure-function relationships.
- Traditional methods can be time-consuming and reagent-intensive.
Purpose of the Study:
- To provide simplified and expedited protocols for site-directed mutagenesis.
- To enable efficient introduction of single and multiple mutations in genes of interest.
Main Methods:
- Single mutations: Inverse PCR with mutagenic primers and Phusion(®) DNA Polymerase.
- Multiple mutations: One-step PCR with mutagenic primers followed by Gibson Assembly™ Master Mix.
Main Results:
- The inverse PCR method efficiently introduces point mutations, insertions, or deletions.
- The Gibson Assembly method allows simultaneous multiple nucleotide changes, saving time and reagents.
Conclusions:
- These optimized protocols simplify and accelerate the process of protein mutagenesis.
- The methods offer efficient and cost-effective alternatives for molecular biology research.
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