Evidence map›Paper›PMID 23315744›Full record

ArticleApplied and environmental microbiology2013

Chemoreceptor VfcA mediates amino acid chemotaxis in Vibrio fischeri.

Caitlin A Brennan, Cindy R DeLoney-Marino, Mark J Mandel

Open access · bronzeAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

30 citing papers in PubMed, 39 citations in OpenAlex.

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  4. Lighting the way: how theJournal of bacteriology · 2024
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  6. Fine-Scale Structuring of PlanktonicApplied and environmental microbiology · 2022
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  14. Review
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  16. Article
  17. Article
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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

3 authors at 3 institutions in 1 country.

Caitlin A BrennanDepartment of Medical Microbiology and Immunology, University of Wisconsin, Madison, Wisconsin, USA.
Cindy R DeLoney-Marino
Mark J Mandel
Northwestern University · USUniversity of Southern Indiana · USUniversity of Wisconsin–Madison · US

Funding

VIBRIO VIRULENCE DETERMINANTS IN A BENIGN COLONIZATIONR01RR012294 · NCRR · UNIVERSITY OF WISCONSIN-MADISON · PI RUBY, EDWARD G · 1996 to 2011
$6.4M
Vibrio Virulence Determinants in a Benign ColonizationR01OD011024 · OD · UNIVERSITY OF WISCONSIN-MADISON · PI MC FALL-NGAI, MARGARET J, RUBY, EDWARD G · 2012 to 2020
$3.9M
NCRR NIH HHS R01 RR012294NCRR NIH HHS RR12294NIH HHS R01 OD011024
6 · The paper itself

Abstract

Flagellar motility and chemotaxis by Vibrio fischeri are important behaviors mediating the colonization of its mutualistic host, the Hawaiian bobtail squid. However, none of the 43 putative methyl-accepting chemotaxis proteins (MCPs) encoded in the V. fischeri genome has been previously characterized. Using both an available transposon mutant collection and directed mutagenesis, we isolated mutants for 19 of these genes, and screened them for altered chemotaxis to six previously identified chemoattractants. Only one mutant was defective in responding to any of the tested compounds; the disrupted gene was thus named vfcA (Vibrio fischeri chemoreceptor A; locus tag VF_0777). In soft-agar plates, mutants disrupted in vfcA did not exhibit the serine-sensing chemotactic ring, and the pattern of migration in the mutant was not affected by the addition of exogenous serine. Using a capillary chemotaxis assay, we showed that, unlike wild-type V. fischeri, the vfcA mutant did not undergo chemotaxis toward serine and that expression of vfcA on a plasmid in the mutant was sufficient to restore the behavior. In addition to serine, we demonstrated that alanine, cysteine, and threonine are strong attractants for wild-type V. fischeri and that the attraction is also mediated by VfcA. This study thus provides the first insights into how V. fischeri integrates information from one of its 43 MCPs to respond to environmental stimuli.

Indexed as

ChemotaxisSignal TransductionAliivibrio fischeriAmino AcidsBacterial ProteinsDNA Transposable ElementsGene DeletionGene Expression Regulation, BacterialGenetic Complementation TestLocomotionMutagenesis, InsertionalAmino AcidsBacterial ProteinsDNA Transposable Elements

Identifiers

PMID23315744
PMCPMC3592237
OpenAlexW2149517650

What OpenQuestion holds

Textmetadata
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.