Genes for biosynthesis of butenolide-like signalling molecules in Streptomyces ghanaensis, their role in moenomycin production

Genes for biosynthesis of butenolide-like signalling molecules in Streptomyces ghanaensis, their... Moenomycins (Mm)—phosphoglycolipid compounds produced by Streptomyces ghanaensis ATCC14672—are considered a promising model for development of novel-class of antibiotics. In this regard it is important to generate Mm overproducing strains which would be a basis for economically justified production of this antibiotic. In this work a set of genes for synthesis and reception of low-molecular weight signaling molecules (LSM) in ATCC14672 were described and their significance for Mm production was studied. The ATCC14672 genome carries structural and regulatory genes for production of LSMs of avenolide and γ-butyrolactone families. Additional copies of LSM biosynthetic genes ssfg_07848 and ssfg_07725 did not alter the Mm production level. ATCC14672 LSMs are not capable of restoring the sporulation of butyrolactone-nonproducing mutant of S. griseus. Likewise, while the heterologous host S. lividans 1326 produced Mm, its mutant M707 (deficient in the butyrolactone synthase gene scbA) did not. Thus, while the natural level of LSMs production by ATCC14672 does not limit Mm synthesis, the former is essential for the synthesis of moenomycins. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Genes for biosynthesis of butenolide-like signalling molecules in Streptomyces ghanaensis, their role in moenomycin production

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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/S1022795414060076
Publisher site
See Article on Publisher Site

Abstract

Moenomycins (Mm)—phosphoglycolipid compounds produced by Streptomyces ghanaensis ATCC14672—are considered a promising model for development of novel-class of antibiotics. In this regard it is important to generate Mm overproducing strains which would be a basis for economically justified production of this antibiotic. In this work a set of genes for synthesis and reception of low-molecular weight signaling molecules (LSM) in ATCC14672 were described and their significance for Mm production was studied. The ATCC14672 genome carries structural and regulatory genes for production of LSMs of avenolide and γ-butyrolactone families. Additional copies of LSM biosynthetic genes ssfg_07848 and ssfg_07725 did not alter the Mm production level. ATCC14672 LSMs are not capable of restoring the sporulation of butyrolactone-nonproducing mutant of S. griseus. Likewise, while the heterologous host S. lividans 1326 produced Mm, its mutant M707 (deficient in the butyrolactone synthase gene scbA) did not. Thus, while the natural level of LSMs production by ATCC14672 does not limit Mm synthesis, the former is essential for the synthesis of moenomycins.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Jun 21, 2014

References

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