Generation and study of the strains of streptomycetes-heterologous hosts for the production of moenomycin

Generation and study of the strains of streptomycetes-heterologous hosts for the production of... Heterologous expression of the moenomycin biosynthesis gene cluster (moe) would be one of the ways to reach this goal. Here, we report the generation of a number of novel heterologous streptomycete hosts producing nosokomycin A2 (one of the members of Mm family) and determine their potential for the antibiotic production. The rpoB point mutation in the model strain of Streptomyces coelicolor (strain M1152) significantly improved nosokomycin A2 production compared to parental strains (M145 and M512), while double rpoBrpsL mutation in the same species (strain M1154) decreased it. Our results point to the previously unanticipated epistatic interactions between mutations that individually are known to be highly beneficial for antibiotic production. We also showed here for the first time that facultative chemolitotrophic streptomycete S. thermospinosisporus and chloramphenicol producer S. venezuelae can be used as the hosts for moe genes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Generation and study of the strains of streptomycetes-heterologous hosts for the production of moenomycin

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Publisher
Pleiades Publishing
Copyright
Copyright © 2014 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795414040085
Publisher site
See Article on Publisher Site

Abstract

Heterologous expression of the moenomycin biosynthesis gene cluster (moe) would be one of the ways to reach this goal. Here, we report the generation of a number of novel heterologous streptomycete hosts producing nosokomycin A2 (one of the members of Mm family) and determine their potential for the antibiotic production. The rpoB point mutation in the model strain of Streptomyces coelicolor (strain M1152) significantly improved nosokomycin A2 production compared to parental strains (M145 and M512), while double rpoBrpsL mutation in the same species (strain M1154) decreased it. Our results point to the previously unanticipated epistatic interactions between mutations that individually are known to be highly beneficial for antibiotic production. We also showed here for the first time that facultative chemolitotrophic streptomycete S. thermospinosisporus and chloramphenicol producer S. venezuelae can be used as the hosts for moe genes.

Journal

Russian Journal of GeneticsSpringer Journals

Published: May 3, 2014

References

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