Evidence map›Paper›PMID 10692381›Full record

ArticleJournal of bacteriology2000

CTXphi infection of Vibrio cholerae requires the tolQRA gene products.

A J Heilpern, M K Waldor

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing 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

56 citing papers in PubMed, 109 citations in OpenAlex.

  1. Article
  2. Article
  3. Proteomic Analysis of the Fish PathogenAnimals : an open access journal from MDPI · 2024
    Article
  4. Review
  5. Article
  6. The Tol-Pal system of Acinetobacter baumannii is important for cell morphology, antibiotic resistance and virulence.International microbiology : the official journal of the Spanish Society for Microbiology · 2023
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. The Tol-Pal system is required for peptidoglycan-cleaving enzymes to complete bacterial cell division.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  15. Article
  16. TheThe Journal of biological chemistry · 2019
    Article
  17. Review
  18. Review
  19. Article
  20. Transcriptomic Analysis ofMolecules (Basel, Switzerland) · 2019
    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

2 authors at 2 institutions in 2 countries.

A J HeilpernGraduate Program in Immunology, Tufts University School of Medicine, Boston, Massachusetts 02111, USA.
M K Waldor
Institute of Immunology · HRTufts University · US

Funding

Vibrio cholerae intestinal colonization and vaccine developmentR01AI042347 · NIAID · TUFTS UNIVERSITY BOSTON · PI WALDOR, MATTHEW K · 1998 to 2025
$7.3M
Molecular Biology and Virulence of CTX PhageR37AI042347 · NIAID · BRIGHAM AND WOMEN'S HOSPITAL · PI WALDOR, MATTHEW K · 2008 to 2017
$3.8M
NIAID NIH HHS AI 42347NIAID NIH HHS R01 AI042347NIAID NIH HHS R37 AI042347
6 · The paper itself

Abstract

CTXphi is a lysogenic filamentous bacteriophage that encodes cholera toxin. Filamentous phages that infect Escherichia coli require both a pilus and the products of tolQRA in order to enter host cells. We have previously shown that toxin-coregulated pilus (TCP), a type IV pilus that is an essential Vibrio cholerae intestinal colonization factor, serves as a receptor for CTXphi. To test whether CTXphi also depends upon tol gene products to infect V. cholerae, we identified and inactivated the V. cholerae tolQRAB orthologues. The predicted amino acid sequences of V. cholerae TolQ, TolR, TolA, and TolB showed significant similarity to the corresponding E. coli sequences. V. cholerae strains with insertion mutations in tolQ, tolR, or tolA were reduced in their efficiency of CTXphi uptake by 4 orders of magnitude, whereas a strain with an insertion mutation in tolB showed no reduction in CTXphi entry. We could detect CTXphi infection of TCP(-) V. cholerae, albeit at very low frequencies. However, strains with mutations in both tcpA and either tolQ, tolR, or tolA were completely resistant to CTXphi infection. Thus, CTXphi, like the E. coli filamentous phages, uses both a pilus and TolQRA to enter its host. This suggests that the pathway for filamentous phage entry into cells is conserved between host bacterial species.

Indexed as

Escherichia coli ProteinsFimbriae ProteinsMembrane ProteinsPeriplasmic ProteinsBacterial Outer Membrane ProteinsBacterial ProteinsBacteriophagesEscherichia coliMutationPhenotypePlasmidsSequence Analysis, DNAVibrioBacterial Outer Membrane ProteinsBacterial ProteinsEscherichia coli ProteinsFimbriae ProteinsMembrane ProteinsPeriplasmic ProteinsTcpA protein, Vibrio choleraetolA protein, E colitolB protein, E colitolQ protein, E colitolR protein, E coli

Identifiers

PMID10692381
PMCPMC94473
OpenAlexW2151687803

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.