Evidence map›Paper›PMID 18676672›Full record

ArticleJournal of bacteriology2008

The pangenome structure of Escherichia coli: comparative genomic analysis of E. coli commensal and pathogenic isolates.

David A Rasko, M J Rosovitz, Garry S A Myers, Emmanuel F Mongodin, W Florian Fricke, Pawel Gajer, Jonathan Crabtree, Mohammed Sebaihia, Nicholas R Thomson, Roy Chaudhuri and 3 more

Abstract readCase ReportsComparative Study
In one paragraph

Article in Journal of bacteriology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 510 papers.

0numbers the graph read from it
0cells of the map it votes in
510citing 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

510 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Whole-Genome Sequencing ofMicroorganisms · 2026
    Article
  11. Review
  12. Pangenome ofEcology and evolution · 2026
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Distribution of prophage-encoded Pas sRNAs across pathogenicbioRxiv : the preprint server for biology · 2026
    Article
  19. Article
  20. Article

450 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

13 authors.

David A RaskoInstitute for Genome Sciences, Department of Microbiology & Immunology, University of Maryland School of Medicine, 20 Penn Street, Baltimore, MD 21201, USA.
M J Rosovitz
Garry S A Myers
Emmanuel F Mongodin
W Florian Fricke
Pawel Gajer
Jonathan Crabtree
Mohammed Sebaihia
Nicholas R Thomson
Roy Chaudhuri
Ian R Henderson
Vanessa Sperandio
Jacques Ravel

Funding

Biotechnology and Biological Sciences Research Council BB/C510075/1Medical Research Council G0700151NIAID NIH HHS N01 AI030071
6 · The paper itself

Abstract

Whole-genome sequencing has been skewed toward bacterial pathogens as a consequence of the prioritization of medical and veterinary diseases. However, it is becoming clear that in order to accurately measure genetic variation within and between pathogenic groups, multiple isolates, as well as commensal species, must be sequenced. This study examined the pangenomic content of Escherichia coli. Six distinct E. coli pathovars can be distinguished using molecular or phenotypic markers, but only two of the six pathovars have been subjected to any genome sequencing previously. Thus, this report provides a seminal description of the genomic contents and unique features of three unsequenced pathovars, enterotoxigenic E. coli, enteropathogenic E. coli, and enteroaggregative E. coli. We also determined the first genome sequence of a human commensal E. coli isolate, E. coli HS, which will undoubtedly provide a new baseline from which workers can examine the evolution of pathogenic E. coli. Comparison of 17 E. coli genomes, 8 of which are new, resulted in identification of approximately 2,200 genes conserved in all isolates. We were also able to identify genes that were isolate and pathovar specific. Fewer pathovar-specific genes were identified than anticipated, suggesting that each isolate may have independently developed virulence capabilities. Pangenome calculations indicate that E. coli genomic diversity represents an open pangenome model containing a reservoir of more than 13,000 genes, many of which may be uncharacterized but important virulence factors. This comparative study of the species E. coli, while descriptive, should provide the basis for future functional work on this important group of pathogens.

Indexed as

Genome, BacterialGenomicsAdultAnimalsComputational BiologyConserved SequenceDNA, BacterialEscherichia coliGenes, BacterialHumansMolecular Sequence DataRabbitsVirulence FactorsDNA, BacterialVirulence Factors

Identifiers

PMID18676672
PMCPMC2566221

What OpenQuestion holds

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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.