Related Experiment Videos
An androgen-inducible expression system for Saccharomyces cerevisiae.
I J Purvis1, D Chotai, C W Dykes
1Department of Genetics, Glaxo Group Research Ltd., Greenford, Middlesex, U.K.
Gene
|September 30, 1991
Summary
A new controllable gene expression system in yeast was created. This system allows for androgen-dependent gene expression, controllable over a 1400-fold range without impacting cell growth.
Area of Science:
- Biotechnology
- Molecular Biology
- Yeast Genetics
Background:
- Controllable gene expression is crucial for synthetic biology and metabolic engineering.
- Existing systems in Saccharomyces cerevisiae often lack precise control or impact cell viability.
Purpose of the Study:
- To develop a novel, tightly regulated, and tunable gene expression system in yeast.
- To enable androgen-dependent expression of target genes in Saccharomyces cerevisiae.
Main Methods:
- Constructed a Saccharomyces cerevisiae strain expressing the human androgen receptor under a strong yeast promoter.
- Utilized a hybrid promoter containing androgen-responsive elements for target gene regulation.
- Optimized expression by adjusting androgen receptor levels, target gene copy number, and dihydrotestosterone concentration.
Main Results:
- Achieved androgen-dependent expression of a target gene.
- Demonstrated a 1400-fold controllable expression range.
- Confirmed no detectable negative impact on yeast cell growth.
Conclusions:
- The developed system provides a robust and tunable method for inducible gene expression in yeast.
- This system offers a valuable tool for applications requiring precise control over gene output, such as metabolic engineering and biopharmaceutical production.