Evidence map›Paper›PMID 12700273›Full record

ArticleJournal of bacteriology2003

Species-wide variation in the Escherichia coli flagellin (H-antigen) gene.

Lei Wang, Deborah Rothemund, Heather Curd, Peter R Reeves

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of bacteriology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
8.9field-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

72 citing papers in PubMed, 160 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
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  7. Evasion of toll-like receptor recognition byFrontiers in microbiology · 2023
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  8. Pathogenicity assessment of Shiga toxin-producingFrontiers in microbiology · 2023
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  13. Investigating the Efficiency of Recombinant FliC-LoadedIranian journal of public health · 2021
    Article
  14. Article
  15. Diversification ofFrontiers in microbiology · 2021
    Article
  16. Review
  17. Article
  18. Article
  19. New Approaches forPathogens (Basel, Switzerland) · 2020
    Article
  20. A Targeted Sequencing Assay for SerotypingFrontiers in microbiology · 2020
    Article

12 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

4 authors at 1 institution in 1 country.

Lei WangSchool of Molecular and Microbial Biosciences (GO8), The University of Sydney, Sydney, NSW 2006, Australia.
Deborah Rothemund
Heather Curd
Peter R Reeves
University of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Escherichia coli is a clonal species. The best-understood components of its clonal variation are the flagellar (H) and polysaccharide (O) antigens, both well documented since the mid-1930s because of their use in serotyping. Flagellin is the protein subunit of the flagellum that carries H-antigen specificity. We show that 43 of the 54 H-antigen specificities of E. coli map to the flagellin gene at fliC and sequenced all 43 forms and confirmed specificity of each by cloning and expression. This is, to our knowledge, the first time that all known forms of such a highly polymorphic gene have been fully sequenced and characterized for any species. The established distinction between a highly variable central region and more conserved flanking regions is upheld. The sequences fall into two groups, one of which may be derived from the fliC gene of the E. coli/Salmonella enterica common ancestor, the other perhaps obtained by lateral transfer since species divergence. Comparison of sequences revealed that both horizontal DNA transfer and fixation of mutations under diversifying selection pressure contributed to polymorphism in this locus.

Indexed as

Antigens, BacterialEscherichia coliFlagellinGenetic VariationGene Transfer, HorizontalMolecular Sequence DataMutationPhylogenySpecies SpecificityAntigens, BacterialFlagellinH antigen

Identifiers

PMID12700273
PMCPMC154406
OpenAlexW2169655541

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.