Evidence map›Paper›PMID 14500477›Full record

ArticleInfection and immunity2003

The global regulator ArcA modulates expression of virulence factors in Vibrio cholerae.

Nilanjan Sengupta, Kalidas Paul, Rukhsana Chowdhury

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

47 citing papers in PubMed, 80 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Non-O1/Non-O139Microorganisms · 2024
    Review
  6. Article
  7. Article
  8. Article
  9. The ArcAB Two-Component System: Function in Metabolism, Redox Control, and Infection.Microbiology and molecular biology reviews : MMBR · 2022
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. On or Off: Life-Changing Decisions Made byInfectious microbes & diseases · 2020
    Review
  17. An ArcA-Modulated Small RNA in PathogenicFrontiers in microbiology · 2020
    Article
  18. Virulence Regulation and Innate Host Response in the Pathogenicity ofFrontiers in cellular and infection microbiology · 2020
    Review
  19. Article
  20. Review
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.

Nilanjan SenguptaBiophysics Division, Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Calcutta 700 032, India.
Kalidas Paul
Rukhsana Chowdhury
Indian Institute of Chemical Biology · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A Vibrio cholerae arcA mutant was constructed and used to examine the role of the global anaerobiosis response regulator ArcA in the expression of virulence factors in this important human pathogen. In V. cholerae, expression of the major virulence factors cholera toxin (CT) and toxin-coregulated pilus (TCP) is regulated by the transcriptional activator ToxT. toxT expression, in turn, is controlled by the transmembrane DNA binding proteins ToxR and TcpP. In the V. cholerae arcA mutant, although ToxR and TcpP were unaffected, Northern blot and reverse transcription-PCR analyses indicated that the expression of toxT was significantly decreased with concomitant reduction in the expression of CT and TCP. CT and TCP expression was completely restored in the V. cholerae arcA mutant strain by expressing a cloned toxT gene in the mutant. These results suggest that ArcA functions as a positive regulator of toxT expression under both aerobic and anaerobic conditions, although as expected, the effect was more pronounced during anaerobic growth. This was reflected in a reduction of virulence of the V. cholerae arcA mutant strain in the infant mouse cholera model.

Indexed as

Repressor ProteinsAnimalsBacterial Outer Membrane ProteinsBacterial ProteinsBacterial ToxinsBase SequenceCholeraCholera ToxinCloning, MolecularDNA, BacterialEscherichia coli ProteinsFimbriae ProteinsGene Expression Regulation, BacterialGenes, BacterialHumansMicearcA protein, E coliBacterial Outer Membrane ProteinsBacterial ProteinsBacterial ToxinsCholera ToxinDNA, BacterialEscherichia coli ProteinsFimbriae ProteinsRepressor ProteinsTcpA protein, Vibrio choleraetcpN protein, Vibrio choleraeTranscription Factors

Identifiers

PMID14500477
PMCPMC201065
OpenAlexW2110383868

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.