Evidence map›Paper›PMID 23977385›Full record

ArticlePloS one2013

Cell density- and quorum sensing-dependent expression of type VI secretion system 2 in Vibrio parahaemolyticus.

Li Wang, Dongsheng Zhou, Panyong Mao, Yiquan Zhang, Jun Hou, Yan Hu, Jin Li, Shaojie Hou, Ruifu Yang, Runhua Wang and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

27 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. The multifunctional type VI secretion system ofApplied and environmental microbiology · 2025
    Review
  5. AphA-dependent c-di-GMP production inJournal of bacteriology · 2025
    Article
  6. Quorum sensing regulates virulence factors in the coral pathogenApplied and environmental microbiology · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Expression of the AHPND Toxins PirAInternational journal of molecular sciences · 2022
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
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

11 authors at 3 institutions in 1 country.

Li WangSchool of Public Health, Chongqing Medical University, Chongqing, China.
Dongsheng Zhou
Panyong Mao
Yiquan Zhang
Jun Hou
Yan Hu
Jin Li
Shaojie Hou
Ruifu Yang
Runhua Wang
Jingfu Qiu
302 Military Hospital of China · CNChongqing Medical University · CNInstitute of Microbiology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVibrio parahaemolyticus AphA and OpaR are the two master quorum sensing (QS) regulators that are abundantly expressed at low cell density (LCD) and high cell density (HCD), respectively, with a feature of reciprocally gradient production of them with transition between LCD and HCD. The type VI secretion system 2 (T6SS2) gene cluster can be assigned into three putative operons, namely VPA1027-1024, VPA1043-1028, and VPA1044-1046. T6SS2 contributes to adhesion of V. parahaemolyticus to host cells. METHODOLOGY/PRINCIPAL

findingsOpaR box-like sequences were found within the upstream promoter regions of all the above three operons, while none of AphA box-like elements could be identified for them. The subsequent primer extension, LacZ fusion, electrophoretic mobility shift, and DNase I footprinting assays disclosed that OpaR bound to the promoter regions of these three operons to stimulate their transcription, while AphA negatively regulated their transcription most likely through acting on OpaR. This regulation led to a gradient increase of T6SS2 transcription with transition from LCD to HCD. CONCLUSIONS/SIGNIFICANCE: V. parahaemolyticus OpaR and AphA positively and negatively regulate T6SS2 expression, respectively, leading to a gradient elevation of T6SS2 expression with transition from LCD to HCD. T6SS2 genes are thus assigned as the QS regulon members in V. parahaemolyticus.

Indexed as

Bacterial ProteinsBacterial Secretion SystemsBase SequenceGene Expression Regulation, BacterialGenes, BacterialMultigene FamilyPromoter Regions, GeneticQuorum SensingTranscription, GeneticVibrio parahaemolyticusBacterial ProteinsBacterial Secretion Systems

Identifiers

PMID23977385
PMCPMC3744643
OpenAlexW2006265862

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.