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Tanwer, P.* ; Bauer, S.* ; Heinrichs, E.* ; Panda, G. ; Saluja, D.* ; Rudel, T.* ; Beier, D.*

Post-transcriptional regulation of target genes by the sRNA FnrS in Neisseria gonorrhoeae.

Microbiol-SGM 163, 1081-1092 (2017)
DOI
Open Access Green as soon as Postprint is submitted to ZB.
Small non-coding RNAs (sRNAs) are well-established post-transcriptional regulators of gene expression in bacteria that respond to a variety of environmental stimuli. They usually act by base-pairing with their target mRNAs, which is commonly facilitated by the RNA chaperone Hfq. In this study we initiated the analysis of the sRNA FnrS of Neisseria gonorrhoeae, which is induced under anaerobic conditions. We identified four putative FnrS target genes using bioinformatics approaches and validated these target genes using translational reporter gene fusions in both Escherichia coli and N. gonorrhoeae, thereby demonstrating their downregulation by direct base-pairing between the respective mRNA and FnrS. We demonstrate deregulation of target mRNAs upon deletion of fnrS and provide evidence that the isc gene cluster required for iron-sulfur cluster biosynthesis, which harbours iscS, which is a direct target of FnrS, is coordinately downregulated by the sRNA. By mutational analysis we show that, surprisingly, three distinct regions of FnrS are employed for interaction with different target genes.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Fnrs ; Neisseria Gonorrhoeae ; Post-transcriptional Regulation ; Srna; Small Noncoding Rna; Polycistronic Messenger-rna; Escherichia-coli; Translational Regulation; Antisense Rna; In-vivo; Hfq; Expression; Meningitidis; Metabolism
ISSN (print) / ISBN 1350-0872
e-ISSN 1465-2080
Quellenangaben Volume: 163, Issue: 7, Pages: 1081-1092 Article Number: , Supplement: ,
Publisher Society for General Microbiology
Publishing Place London
Reviewing status Peer reviewed
Institute(s) Institute of Network Biology (INET)