Evidence map›Paper›PMID 18606735›Full record

ArticleJournal of bacteriology2008

Evolution of the Rhodococcus equi vap pathogenicity island seen through comparison of host-associated vapA and vapB virulence plasmids.

Michal Letek, Alain A Ocampo-Sosa, Mandy Sanders, Ursula Fogarty, Tom Buckley, Desmond P Leadon, Patricia González, Mariela Scortti, Wim G Meijer, Julian Parkhill and 2 more

Open access · greenAbstract read
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 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

51 citing papers in PubMed, 101 citations in OpenAlex.

  1. Article
  2. Antimicrobial Resistance inAntibiotics (Basel, Switzerland) · 2026
    Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Conformational changes of loops highlight a potential binding site in Rhodococcus equi VapB.Acta crystallographica. Section F, Structural biology communications · 2021
    Article
  11. Virulence Plasmids ofFrontiers in veterinary science · 2021
    Article
  12. Conservation ofInternational journal of systematic and evolutionary microbiology · 2020
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Ulcerative, granulomatous glossitis and enteritis caused byJournal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2019
    Article
  18. Review
  19. Comparative Genomic Analysis ofInternational journal of genomics · 2019
    Article
  20. Current taxonomy of Rhodococcus species and their role in infections.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2018
    Review
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

12 authors at 5 institutions in 3 countries.

Michal LetekDivision of Microbial Pathogenesis, Centre for Infectious Diseases, Ashworth Laboratories, King's Buildings, University of Edinburgh, Edinburgh EH9 3JT, United Kingdom.
Alain A Ocampo-Sosa
Mandy Sanders
Ursula Fogarty
Tom Buckley
Desmond P Leadon
Patricia González
Mariela Scortti
Wim G Meijer
Julian Parkhill
Stephen Bentley
José A Vázquez-Boland
Irish Equine Centre · IEWellcome Sanger Institute · GBUniversity of Bristol · GBUniversity College Dublin · IEUniversity of Edinburgh · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The pathogenic actinomycete Rhodococcus equi harbors different types of virulence plasmids associated with specific nonhuman hosts. We determined the complete DNA sequence of a vapB(+) plasmid, typically associated with pig isolates, and compared it with that of the horse-specific vapA(+) plasmid type. pVAPB1593, a circular 79,251-bp element, had the same housekeeping backbone as the vapA(+) plasmid but differed over an approximately 22-kb region. This variable region encompassed the vap pathogenicity island (PAI), was clearly subject to selective pressures different from those affecting the backbone, and showed major genetic rearrangements involving the vap genes. The pVAPB1593 PAI harbored five different vap genes (vapB and vapJ to -M, with vapK present in two copies), which encoded products differing by 24 to 84% in amino acid sequence from the six full-length vapA(+) plasmid-encoded Vap proteins, consistent with a role for the specific vap gene complement in R. equi host tropism. Sequence analyses, including interpolated variable-order motifs for detection of alien DNA and reconstruction of Vap family phylogenetic relationships, suggested that the vap PAI was acquired by an ancestor plasmid via lateral gene transfer, subsequently evolving by vap gene duplication and sequence diversification to give different (host-adapted) plasmids. The R. equi virulence plasmids belong to a new family of actinobacterial circular replicons characterized by an ancient conjugative backbone and a horizontally acquired niche-adaptive plasticity region.

Indexed as

Evolution, MolecularBacterial ProteinsDNA, BacterialGene Transfer, HorizontalGenomic IslandsModels, GeneticMolecular Sequence DataMultigene FamilyPhylogenyPlasmidsRhodococcus equiSequence Analysis, DNAVirulenceBacterial ProteinsDNA, Bacterial

Identifiers

PMID18606735
PMCPMC2519538
OpenAlexW2160993408

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.