Evidence map›Paper›PMID 21788383›Full record

ArticleInfection and immunity2011

Functional characterization of EpsC, a component of the type II secretion system, in the pathogenicity of Vibrio vulnificus.

Won Hwang, Na Yeon Lee, Juri Kim, Mi-Ae Lee, Kun-Soo Kim, Kyu-Ho Lee, Soon-Jung Park

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In one paragraph

Article in Infection and immunity, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. TolCV1 inhibition by NPPB rendersAntimicrobial agents and chemotherapy · 2025
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  4. Article
  5. Article
  6. Article
  7. Review
  8. TolCV1 Has Multifaceted Roles DuringFrontiers in cellular and infection microbiology · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. A case ofJMM case reports · 2017
    Article
  13. Review
  14. Article
  15. Article
  16. 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

7 authors at 3 institutions in 1 country.

Won HwangDepartment of Environmental Medical Biology, Yonsei University College of Medicine, Seoul 120-752, Republic of Korea.
Na Yeon Lee
Juri Kim
Mi-Ae Lee
Kun-Soo Kim
Kyu-Ho Lee
Soon-Jung Park
Yonsei University · KRHankuk University of Foreign Studies · KRSogang University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

EpsC, one of the components comprising the type II secretion system (T2SS), was isolated from a human-pathogenic bacterium, Vibrio vulnificus, to evaluate its role in eliciting virulence. An espC-deleted mutant of V. vulnificus displayed a reduced cytotoxicity to the human cell line HEp-2 and an attenuated virulence in a mouse model. This mutant exhibited dramatic defects in the secretion of diverse extracellular proteins, such as outer membrane proteins, transporters, and the known secreted factors, notably, a hemolysin (VvhA) and an elastase (VvpE). A defect in its secretion of proteins was restored by in trans complementation of the intact epsC gene. Analyses of cellular fractions revealed that VvhA and VvpE of the ΔepsC mutant were not excreted outside the cell but were present mainly in the periplasmic space. Examination of a V. vulnificus mutant deficient in TolC, a component of the T1SS, showed that it is not involved in the secretion of VvhA and VvpE but that it is necessary for the secretion of another major toxin of V. vulnificus, RtxA. Therefore, the T2SS is required for V. vulnificus pathogenicity, which is mediated by at least two secreted factors, VvhA and VvpE, via facilitating the secretion and exposure of these factors to host cells.

Indexed as

AnimalsBacterial ProteinsBacterial Secretion SystemsCell LineGene DeletionGene Expression Regulation, BacterialHumansLiverMicePancreatic ElastaseVibrio InfectionsVibrio vulnificusBacterial ProteinsBacterial Secretion SystemsPancreatic ElastaseVvhA protein, Vibrio vulnificus

Identifiers

PMID21788383
PMCPMC3187239
OpenAlexW2154690046

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.