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Related Experiment Video

Updated: Jul 5, 2026

Rapid Assembly of Multi-Gene Constructs using Modular Golden Gate Cloning

Rapid Assembly of Multi-Gene Constructs using Modular Golden Gate Cloning

Published on: February 5, 2021

Comparison of multiple gene assembly methods for metabolic engineering.

Chenfeng Lu¹, Karen Mansoorabadi, Thomas Jeffries

¹Department of Food Science, University of Wisconsin, Madison, WI 53706, USA.

Applied Biochemistry and Biotechnology

|May 15, 2008

Summary

A novel SfiI ligation method efficiently assembles multiple DNA fragments for gene expression optimization. This rapid technique improves multigene plasmid construction in biological research and industrial applications.

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Area of Science:

Molecular Biology
Synthetic Biology
Biotechnology

Background:

Efficient multigene plasmid construction is crucial for biological research and optimizing gene expression in industrial microbes.
Existing DNA assembly methods face challenges with large DNA fragments and repeated homologous regions.

Purpose of the Study:

To evaluate and improve DNA assembly methods for efficient multigene plasmid construction.
To develop a universal and rapid DNA assembly technique suitable for complex genetic constructs.

Main Methods:

Comparison of three DNA assembly approaches: uracil-DNA glycosylase, overlap extension polymerase chain reaction (PCR), and SfiI-based ligation.
Improvement of a previous SfiI ligation technique for enhanced flexibility and elimination of PCR-based adaptor incorporation.
Application of the refined SfiI method for ligating Saccharomyces cerevisiae genes TAL1, TKL1, and PYK1.

Main Results:

SfiI ligation proved to be the only successful method for assembling large DNA fragments, including those with repeated homologous regions.
The improved SfiI method demonstrated flexibility and did not require PCR for adaptor integration.
Successful ligation of three specific genes (TAL1, TKL1, PYK1) was achieved, yielding the desired construct 65% of the time in four-piece ligations.

Conclusions:

The SfiI ligation method is a robust and efficient approach for multigene plasmid construction.
This technique offers a significant advancement for assembling large and complex DNA fragments in molecular biology applications.
The optimized SfiI method provides a flexible, rapid, and effective tool for genetic engineering and synthetic biology.