Related Experiment Video
Updated: Jul 15, 2026

10:39
A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae
Published on: September 17, 2020
Quick and easy yeast transformation using the LiAc/SS carrier DNA/PEG method.
R Daniel Gietz1, Robert H Schiestl
1Department of Biochemistry and Medical Genetics, University of Manitoba, T250-770 Bannatyne Ave., Winnipeg, Manitoba R3E 0W3, Canada.
Nature Protocols
|April 3, 2007
Summary
A simplified lithium acetate/single-stranded carrier DNA/polyethylene glycol (PEG) method enables rapid Saccharomyces cerevisiae transformation. This efficient technique is ideal for generating a small number of yeast transformants in under an hour.
Area of Science:
- Molecular Biology
- Yeast Genetics
Background:
- Traditional yeast transformation methods can be time-consuming and require specific cell growth conditions.
- Optimizing transformation protocols is crucial for efficient genetic manipulation of Saccharomyces cerevisiae.
Purpose of the Study:
- To present a rapid and simplified protocol for yeast transformation.
- To adapt the lithium acetate/single-stranded carrier DNA/polyethylene glycol (PEG) method for scenarios requiring few transformants.
Main Methods:
- Utilized a modified lithium acetate/single-stranded carrier DNA/PEG transformation protocol.
- Focused on minimizing procedure time, aiming for completion in under one hour.
- Tested the protocol's efficacy across various yeast cell growth and storage states.
Main Results:
- Successfully demonstrated a quick and easy transformation method for Saccharomyces cerevisiae.
- The protocol is effective for generating a small number of transformants.
- Transformation is feasible using cells from diverse growth stages and storage conditions, including room temperature or refrigerated plates.
Conclusions:
- This streamlined protocol offers an efficient alternative for routine yeast transformations.
- The method's versatility allows for immediate use with various cell preparations.
- It provides a valuable tool for researchers needing rapid yeast genetic modification.

