Evidence map›Paper›PMID 12874331›Full record

ArticleInfection and immunity2003

Characterization of the novel factor paa involved in the early steps of the adhesion mechanism of attaching and effacing Escherichia coli.

Isabelle Batisson, Marie-Pierre Guimond, Francis Girard, Hongyan An, Chengru Zhu, Eric Oswald, John M Fairbrother, Mario Jacques, Josée Harel

Abstract 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 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
–field-weighted citation impact
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

50 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Pathogenicity assessment of Shiga toxin-producingFrontiers in microbiology · 2023
    Article
  7. Effect and Mechanism Analysis of PigInternational journal of molecular sciences · 2022
    Article
  8. Article
  9. Comparative Pathogenomics ofInfection and immunity · 2021
    Article
  10. Article
  11. Article
  12. Characterization of Non-O157Microorganisms · 2019
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  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

9 authors.

Isabelle BatissonLaboratoire de Biologie des Protistes, UMR 6023, Université Blaise Pascal, Aubière, France.
Marie-Pierre Guimond
Francis Girard
Hongyan An
Chengru Zhu
Eric Oswald
John M Fairbrother
Mario Jacques
Josée Harel

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nonenterotoxigenic porcine Escherichia coli strains belonging to the serogroup O45 have been associated with postweaning diarrhea in swine and adhere to intestinal epithelial cells in a characteristic attaching and effacing (A/E) pattern. O45 porcine enteropathogenic E. coli (PEPEC) strain 86-1390 induces typical A/E lesions in a pig ileal explant model. Using TnphoA transposon insertion mutagenesis on strain 86-1390, we found a mutant that did not induce A/E lesions. The insertion was identified in a gene designated paa (porcine A/E-associated gene). Sequence analysis of paa revealed an open reading frame of 753 bp encoding a 27.6-kDa protein which displayed 100, 51.8, and 49% homology with Paa of enterohemorrhagic E. coli O157:H7 strains (EDL933 and Sakai), PEB3 of Campylobacter jejuni, and AcfC of Vibrio cholerae, respectively. Chromosomal localization studies indicated that the region containing paa was inserted between the yciD and yciE genes at about 28.3 min of the E. coli K-12 chromosome. The presence of paa and eae sequences in the porcine O45 strains is highly correlated with the A/E phenotype. However, the observation that three eae-positive but paa-negative PEPEC O45 strains were A/E negative provides further evidence for the importance of the paa gene in the A/E activity of O45 strains. As well, the complementation of the paa mutant restored the A/E activity of the 86-1390 strain, showing the involvement of Paa in PEPEC pathogenicity. These observations suggest that Paa contributes to the early stages of A/E E. coli virulence.

Indexed as

Adhesins, Escherichia coliAllelesAmino Acid SequenceAnimalsAntibodies, BacterialBacterial AdhesionBase SequenceChromosome MappingChromosomes, BacterialDNA, BacterialEscherichia coliGenes, BacterialGenetic Complementation TestIntestinal MucosaMicroscopy, ElectronMolecular Sequence DataAdhesins, Escherichia coliAntibodies, BacterialDNA, Bacterial

Identifiers

PMID12874331
PMCPMC166039

What OpenQuestion holds

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Registered trials

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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.