Evidence map›Paper›PMID 27010574›Full record

ArticleMicrobiology (Reading, England)2016

CRISPR-Cas gene-editing reveals RsmA and RsmC act through FlhDC to repress the SdhE flavinylation factor and control motility and prodigiosin production in Serratia.

Hannah G Hampton, Matthew B McNeil, Thomas J Paterson, Blair Ney, Neil R Williamson, Richard A Easingwood, Mihnea Bostina, George P C Salmond, Peter C Fineran

Open access · hybridAbstract read
In one paragraph

Article in Microbiology (Reading, England), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.4field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
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  6. Review
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  8. Review
  9. Article
  10. Article
  11. Fnr Negatively Regulates Prodigiosin Synthesis inFrontiers in microbiology · 2021
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 2 countries.

Hannah G HamptonDepartment of Microbiology and Immunology, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
Matthew B McNeilDepartment of Microbiology and Immunology, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
Thomas J PatersonDepartment of Microbiology and Immunology, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
Blair NeyDepartment of Microbiology and Immunology, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
Neil R WilliamsonDepartment of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1QW, UK.
Richard A EasingwoodOtago Centre for Electron Microscopy, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
Mihnea BostinaDepartment of Microbiology and Immunology, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
George P C SalmondDepartment of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1QW, UK.
Peter C FineranDepartment of Microbiology and Immunology, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
University of Otago · NZUniversity of Cambridge · GB

Funding

Biotechnology and Biological Sciences Research Council BB/H013261/1
6 · The paper itself

Abstract

SdhE is required for the flavinylation and activation of succinate dehydrogenase and fumarate reductase (FRD). In addition, SdhE is conserved in proteobacteria (α, β and γ) and eukaryotes. Although the function of this recently characterized family of proteins has been determined, almost nothing is known about how their genes are regulated. Here, the RsmA (CsrA) and RsmC (HexY) post-transcriptional and post-translational regulators have been identified and shown to repress sdhEygfX expression in Serratia sp. ATCC 39006. Conversely, the flagella master regulator complex, FlhDC, activated sdhEygfX transcription. To investigate the hierarchy of control, we developed a novel approach that utilized endogenous CRISPR (clustered regularly interspaced short palindromic repeats)-Cas (CRISPR associated) genome-editing by a type I-F system to generate a chromosomal point mutation in flhC. Mutation of flhC alleviated the ability of RsmC to repress sdhEygfX expression, whereas RsmA acted in both an FlhDC-dependent and -independent manner to inhibit sdhEygfX. Mutation of rsmA or rsmC, or overexpression of FlhDC, led to increased prodigiosin, biosurfactant, swimming and swarming. Consistent with the modulation of sdhE by motility regulators, we have demonstrated that SdhE and FRD are required for maximal flagella-dependent swimming. Together, these results demonstrate that regulators of both metabolism and motility (RsmA, RsmC and FlhDC) control the transcription of the sdhEygfX operon.

Indexed as

Clustered Regularly Interspaced Short Palindromic RepeatsCRISPR-Cas SystemsFlagellaGene EditingGene Expression Regulation, BacterialMethyltransferasesProdigiosinRepressor ProteinsRNA-Binding ProteinsSerratiaSuccinate DehydrogenaseTrans-ActivatorsMethyltransferasesProdigiosinRepressor ProteinsRNA-Binding ProteinsSuccinate DehydrogenaseTrans-Activators

Identifiers

PMID27010574
PMCPMC5042078
OpenAlexW2306967640

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.