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05:49
Protein Engineering by Yeast Surface Display
Published on: November 29, 2024
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An Engineered Sso7d Variant Enables Efficient Magnetization of Yeast Cells
Carlos A Cruz-Teran1, Kaitlyn Bacon1, Nikki McArthur1
1Department of Chemical and Biomolecular Engineering , North Carolina State University , Box 7905, Engineering Building I , Raleigh , North Carolina 27695 , United States.
ACS Combinatorial Science
|September 7, 2018
Summary
Researchers developed a mutant protein, SsoFe2, enabling yeast cells to bind iron oxide nanoparticles. This allows for efficient magnetic separation of cells from complex solutions, advancing biotechnology applications.
Area of Science:
- Biotechnology
- Biomaterials Science
- Cell Biology
Background:
- Iron oxide nanoparticles offer cost-effective and non-toxic solutions for cell separation.
- Efficient cell separation is crucial for various industrial and biotechnological processes.
Purpose of the Study:
- To develop a method for efficient magnetic separation of yeast cells using iron oxide nanoparticles.
- To identify and characterize a protein that facilitates specific binding of yeast cells to iron oxide.
Main Methods:
- Screening a combinatorial library of Sso7d protein mutants to find those binding iron oxide.
- Characterizing the SsoFe2 mutant for its binding affinity and specificity.
- Expressing SsoFe2 on the yeast cell surface and evaluating magnetic separation efficiency.
Main Results:
- A specific Sso7d mutant, SsoFe2, was identified that binds iron oxide.
- Yeast cells expressing SsoFe2 showed preferential binding to iron oxide, even in the presence of excess competitor cells.
- Coexpression of SsoFe2 enabled efficient magnetic separation of engineered yeast cells from complex media.
Conclusions:
- Sso7d mutant SsoFe2 facilitates efficient magnetization and magnetic separation of yeast cells.
- This SsoFe2-enabled magnetization has broad potential for industrial and biotechnological applications requiring cell separation.
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