Secretion of streptavidin from Bacillus subtilis

Author:

Nagarajan V1,Ramaley R1,Albertson H1,Chen M1

Affiliation:

1. Central Research and Development Division, E. I. duPont de Nemours Company, Wilmington, Delaware 19880-0328.

Abstract

Streptavidin is an extracellular tetrameric protein produced by Streptomyces avidinii. A series of hybrid gene fusions consisting of Bacillus signal peptide coding regions fused to the mature streptavidin sequence were constructed. B. subtilis strains harboring these plasmids accumulate a tetrameric streptavidin in the growth medium. The properties of the streptavidin produced by B. subtilis are similar to those of the streptavidin produced by S. avidinii. B. subtilis strains carrying the various fusions can be grown to a high cell density in a biotin-free medium. Thus, B. subtilis represents an alternate host system for the production of streptavidin.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference16 articles.

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3. Single-step purification of avidin from egg white by affinity chromatography on biocytin-Sepharose columns;Cuatrecasas P.;Biochem. Biophys. Res. Commun.,1968

4. The purification of avidin and its derivatives on 2-iminobiotin-6-aminohexyl-Sepharose 4B;Heney G.;Anal. Biochem.,1981

5. Hofmann K. S. W. Wood C. C. Brinton J. A. Montibeller and APPL. ENvIRON. MICROBIOL.

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