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Published on: February 25, 2010
Reliable protein production in a Pseudomonas fluorescens expression system
Diane M Retallack1, Hongfan Jin, Lawrence Chew
1Pfenex Inc., 10790 Roselle Street, San Diego, CA 92121, United States. dretallack@pfenex.com
Protein Expression and Purification
|October 5, 2011
Summary
Developing reliable recombinant protein expression is key for product development. A new Pseudomonas fluorescens platform with a molecular toolbox and automated screening enables rapid production of active target proteins.
Area of Science:
- Biotechnology and Molecular Biology
- Microbial Engineering
Background:
- Reliable expression of active target proteins is a significant bottleneck in product development.
- Diverse recombinant proteins, including non-natural ones, require efficient expression systems.
- Existing expression systems face challenges in producing proteins in a soluble and active form.
Purpose of the Study:
- To develop a novel Pseudomonas fluorescens expression platform for recombinant protein production.
- To create an integrated molecular toolbox and automate strain screening for enhanced efficiency.
- To demonstrate the platform's capability in rapidly developing expression strains for various proteins.
Main Methods:
- Development of a Pseudomonas fluorescens expression platform.
- Creation of an integrated molecular toolbox including expression elements and host strains.
- Implementation of automated strain screening and scale-up experiments.
Main Results:
- Successful development of a Pseudomonas fluorescens expression platform tailored for recombinant protein production.
- Demonstrated rapid development of expression strains through automated screening.
- Achieved production of a wide variety of proteins in a soluble and active form.
Conclusions:
- The Pseudomonas fluorescens platform offers a robust solution for overcoming expression bottlenecks.
- Automated screening and an integrated toolbox accelerate the development of recombinant protein expression strains.
- The platform facilitates the efficient production of active target proteins for product development.

