Evidence map›Paper›PMID 10531204›Full record

ArticleInfection and immunity1999

Characterization of pic, a secreted protease of Shigella flexneri and enteroaggregative Escherichia coli.

I R Henderson, J Czeczulin, C Eslava, F Noriega, J P Nataro

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 180 papers.

0numbers the graph read from it
0cells of the map it votes in
180citing papers in PubMed
7.0field-weighted citation impact, top 2% 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

180 citing papers in PubMed, 349 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Review
  5. Article
  6. Review
  7. The VaginalMicroorganisms · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Nutrition ofEcoSal Plus · 2024
    Review
  15. SPATEs promote the survival ofProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  16. Genomic Dissection of an EnteroaggregativeInternational journal of molecular sciences · 2024
    Article
  17. Article
  18. Plasmid-encoded toxin ofFrontiers in cellular and infection microbiology · 2024
    Article
  19. Review
  20. A Mini-Review of EnteroaggregativePolish journal of microbiology · 2023
    Review

120 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 2 countries.

I R HendersonCenter for Vaccine Development, Department of Pediatrics, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA. ihenders@umaryland.edu
J Czeczulin
C Eslava
F Noriega
J P Nataro
University of Maryland, Baltimore · USUniversidad Nacional Autónoma de México · MX

Funding

Virulence in Enteroaggregative Escherichia coliR01AI033096 · NIAID · UNIVERSITY OF VIRGINIA · PI NATARO, JAMES P. · 1996 to 2014
$6.6M
ADHERENCE IN ENTEROAGGREGATIVE E. COLIR29AI033096 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI NATARO, JAMES P. · 1992 to 1996
–
NIAID NIH HHS AI33096NIAID NIH HHS R01 AI033096
6 · The paper itself

Abstract

We have identified and characterized a secreted protein, designated Pic, which is encoded on the chromosomes of enteroaggregative Escherichia coli (EAEC) 042 and Shigella flexneri 2457T. The product of the pic gene is synthesized as a 146.5-kDa precursor molecule which is processed at the N and C termini during secretion, allowing the release of a mature protein (109.8 kDa) into the culture supernatant. The deduced amino acid sequence of Pic shows high homology to autotransporter proteins, particularly a subgroup termed the SPATEs (serine protease autotransporters of the Enterobacteriaceae). Present in all members of this subgroup is a motif similar to the active sites of certain serine proteases. Pic catalyzes gelatin degradation, which can be abolished by disruption of the predicted proteolytic active site. Functional analysis of the Pic protein implicates this factor in mucinase activity, serum resistance, and hemagglutination. Our data suggest that Pic may be a multifunctional protein involved in enteric pathogenesis.

Indexed as

AdultAnimalsBacterial ProteinsBlood Bactericidal ActivityCloning, MolecularEndopeptidasesEscherichia coliHemagglutinationHumansMiceMolecular Sequence DataRabbitsSerine ProteasesShigella flexneriBacterial ProteinsEndopeptidasesPic protein, Shigella flexneriSerine Proteases

Identifiers

PMID10531204
PMCPMC96930
OpenAlexW2155208387

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.