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Transcriptional regulation of central carbon metabolism in Pseudomonas aeruginosa.

Published version
Peer-reviewed

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Authors

Pereira, Greicy 
Silva-Rocha, Rafael  ORCID logo  https://orcid.org/0000-0001-6319-631X

Abstract

Microbes such as Pseudomonas aeruginosa are often challenged by rapidly changing nutritional environments. In order to adapt to these shifts in nutrient availability, bacteria exert tight transcriptional control over the enzymes of central metabolism. This transcriptional control is orchestrated by a series of transcriptional repressors and activators. Although a number of these transcription factors have been identified, many others remain uncharacterized. Here, we present a simple pipeline to uncover and validate the targets of uncharacterized transcriptional regulators in P. aeruginosa. We use this approach to identify and confirm that an orthologue of the Pseudomonas fluorescens transcriptional regulator (RccR) binds to the upstream region of isocitrate lyase (aceA) in P. aeruginosa, thereby repressing flux through the glyoxylate shunt during growth on non-C2 carbon sources.

Description

Keywords

Bacterial Proteins, Carbon, Gene Expression Regulation, Bacterial, Isocitrate Lyase, Pseudomonas aeruginosa

Journal Title

Microb Biotechnol

Conference Name

Journal ISSN

1751-7907
1751-7915

Volume Title

13

Publisher

Wiley
Sponsorship
Biotechnology and Biological Sciences Research Council (BB/M019411/1)
Biotechnology and Biological Sciences Research Council (BB/R005435/1)