The complete 12 Mb genome and transcriptome of Nonomuraea gerenzanensis with new insights into its duplicated "magic" RNA polymerase
Abstract
n contrast to the widely accepted consensus of the existence of a single RNA polymerase in bacteria, several actinomycetes have been recently shown to possess two forms of RNA polymerases due theto co-existence of two rpoB paralogs in their genome. However, the biological signi cance of the rpoB duplication is obscure. In this study we have determined the genome sequence of the lipoglycopeptide antibiotic A40926 producer Nonomuraea gerenzanensis ATCC 39727, an actinomycete with a large genome and two rpoB genes, i.e. rpoB(S) (the wild-type gene) and rpoB(R) (the mutant-type gene). We next analyzed the transcriptional and metabolite pro les in the wild-type gene and in two derivative strains over-expressing either rpoB(R) or a mutated form of this gene to explore the physiological role and biotechnological potential of the "mutant-type" RNA polymerase. We show that rpoB(R) controls antibiotic production and a wide range of metabolic adaptive behaviors in response to environmental pH. This may give interesting perspectives also with regard to biotechnological applications.
Autore Pugliese
Tutti gli autori
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V. D'Argenio; M. Petrillo; D. Pasanisi; C. Pagliarulo; R. Colicchio; A. a Tal ; M.S. de Biase; M. Zanfardino; E. Scolamiero; C. Pagliuca; A. Gaballo; A.G. Cicatiello; P. Cantiello; I. Postiglione; B. Naso; A. Boccia; M. Durante; L. Cozzuto; P. Salvatore; G. Paolella; F. Salvatore; P. Alifano
Titolo volume/Rivista
Scientific reports
Anno di pubblicazione
2016
ISSN
2045-2322
ISBN
Non Disponibile
Numero di citazioni Wos
Nessuna citazione
Ultimo Aggiornamento Citazioni
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Numero di citazioni Scopus
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Settori ERC
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Codici ASJC
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