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Updated: Sep 6, 2025
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Expression of Recombinant Proteins in the Methylotrophic Yeast Pichia pastoris
Published on: February 25, 2010
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Competent Cell Preparation and Transformation of Pichia pastoris
Joan Lin-Cereghino1, Christopher A Naranjo1, Geoff P Lin-Cereghino2
1Department of Biological Sciences, University of the Pacific, Stockton, CA, USA.
Methods in Molecular Biology (Clifton, N.J.)
|July 5, 2022
Summary
This study presents a streamlined protocol for transforming Pichia pastoris (Komagataella phaffii), simplifying genetic manipulation for heterologous protein expression. The optimized method saves time while maintaining high efficiency for DNA introduction.
Area of Science:
- Biotechnology
- Molecular Biology
- Microbiology
Background:
- Pichia pastoris (Komagataella phaffii) is a widely used yeast for heterologous protein expression.
- Its popularity stems from the ease of its molecular genetic manipulation.
- Existing DNA transformation protocols include electroporation and heat shock.
Purpose of the Study:
- To develop a shortened and effective protocol for Pichia pastoris cell preparation and DNA transformation.
- To provide a time-saving method for genetic manipulation in this yeast host.
Main Methods:
- A streamlined protocol combining efficient steps from electroporation and heat-shock transformation methods.
- Utilizes either prototrophic markers or antibiotic selection for transformation.
Main Results:
- The described procedure reliably transforms Pichia pastoris (Komagataella phaffii).
- The shortened protocol is both time-saving and effective for DNA introduction.
Conclusions:
- The optimized protocol enhances the efficiency of genetic manipulation in Pichia pastoris.
- This method facilitates heterologous protein expression by simplifying yeast transformation.
