Evidence map›Paper›PMID 24987102›Full record

ArticleMicrobiology (Reading, England)2014

H-NS regulates the Vibrio parahaemolyticus type VI secretion system 1.

Dor Salomon, John A Klimko, Kim Orth

Open access · greenAbstract read
In one paragraph

Article in Microbiology (Reading, England), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.6field-weighted citation impact, top 12% 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

40 citing papers in PubMed, 62 citations in OpenAlex.

  1. Tetrathionate sensing enablesGut microbes · 2026
    Article
  2. The divergentMicrobiology (Reading, England) · 2026
    Article
  3. Review
  4. Review
  5. Review
  6. Review
  7. The multifunctional type VI secretion system ofApplied and environmental microbiology · 2025
    Review
  8. Article
  9. Article
  10. Article
  11. Identification of virulence-associated factors in Vibrio parahaemolyticus with special reference to moonlighting protein: a secretomics study.International microbiology : the official journal of the Spanish Society for Microbiology · 2024
    Article
  12. Article
  13. Review
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  15. 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 1 institution in 1 country.

Dor SalomonDepartment of Molecular Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-8816, USA.
John A KlimkoDepartment of Molecular Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-8816, USA.
Kim OrthDepartment of Molecular Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-8816, USA.
The University of Texas Southwestern Medical Center · US

Funding

Biochemical Characterization of Yersinia Effector YopJ.R01AI056404 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI ORTH, KIM · 2003 to 2012
$2.8M
NIAID NIH HHS R01 AI056404NIAID NIH HHS R01-AI056404
6 · The paper itself

Abstract

The marine bacterium Vibrio parahaemolyticus, a major cause of food-borne gastroenteritis, employs a type VI secretion system 1 (T6SS1), a recently discovered protein secretion system, to combat competing bacteria. Environmental signals such as temperature, salinity, cell density and surface sensing, as well as the quorum-sensing master regulator OpaR, were previously reported to regulate T6SS1 activity and expression. In this work, we set out to identify additional transcription regulators that control the tightly regulated T6SS1 activity. To this end, we determined the effect of deletions in several known virulence regulators and in two regulators encoded within the T6SS1 gene cluster on expression and secretion of the core T6SS component Hcp1 and on T6SS1-mediated anti-bacterial activity. We report that VP1391 and VP1407, transcriptional regulators encoded within the T6SS1 gene cluster, are essential for T6SS1 activity. Moreover, we found that H-NS, a bacterial histone-like nucleoid structuring protein, which mediates transcription silencing of horizontally acquired genes, serves as a repressor of T6SS1. We also show that activation of surface sensing and high salt conditions alleviate the H-NS-mediated repression. Our results shed light on the complex network of environmental signals and transcription regulators that govern the tight regulation over T6SS1 activity.

Indexed as

Bacterial Secretion SystemsGene Expression Regulation, BacterialBacterial ProteinsDNA-Binding ProteinsProtein TransportRepressor ProteinsSequence DeletionVibrio parahaemolyticusBacterial ProteinsBacterial Secretion SystemsDNA-Binding ProteinsH-NS protein, bacteriaRepressor Proteins

Identifiers

PMID24987102
PMCPMC4148687
OpenAlexW1985210360

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.