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The Green Monster Process for the Generation of Yeast Strains Carrying Multiple Gene Deletions
Published on: December 15, 2012
Delete and repeat: a comprehensive toolkit for sequential gene knockout in the budding yeast Saccharomyces cerevisiae
Johannes H Hegemann1, Sven Boris Heick
1Heinrich-Heine-Universität, Lehrstuhl für Funktionelle Genomforschung der Mikroorganismen, Düsseldorf, Germany. Johannes.hegemann@uni-duesseldorf.de
Methods in Molecular Biology (Clifton, N.J.)
|August 5, 2011
Summary
This study presents a versatile yeast gene disruption toolbox. It enables efficient multiple gene inactivations using heterologous markers and Cre recombinase for marker reuse, streamlining genetic analysis.
Area of Science:
- Molecular Biology
- Yeast Genetics
- Synthetic Biology
Background:
- Gene inactivation is crucial for understanding gene function.
- Existing tools in Saccharomyces cerevisiae facilitate gene disruption.
- One-step gene disruption relies on homologous recombination with marker cassettes.
Purpose of the Study:
- To develop a comprehensive toolbox for multiple gene disruptions in yeast.
- To enhance efficiency and reusability of marker genes in gene inactivation.
- To provide a versatile set of tools for Saccharomyces cerevisiae research.
Main Methods:
- Construction of gene disruption cassettes with heterologous marker genes.
- Utilizing DNA segments homologous to target gene regions for integration.
- Incorporating loxP sites for Cre recombinase-mediated marker excision.
- Developing Cre expression plasmids with diverse selection markers.
Main Results:
- Achieved highly efficient one-step gene disruption events.
- Demonstrated successful integration of marker cassettes in over 50% of clones.
- Enabled sequence-specific marker rescue for subsequent gene disruptions.
- Developed a toolbox with seven heterologous marker genes and Cre expression plasmids.
Conclusions:
- The developed toolbox significantly facilitates multiple gene disruptions in yeast.
- The Cre-lox system allows for efficient marker recycling, reducing experimental costs.
- This resource empowers researchers to perform complex genetic manipulations in Saccharomyces cerevisiae.
