Evidence map›Paper›PMID 10496875›Full record

ArticleInfection and immunity1999

Cloning and sequencing of the genes downstream of the wbf gene cluster of Vibrio cholerae serogroup O139 and analysis of the junction genes in other serogroups.

S Sozhamannan, Y K Deng, M Li, A Sulakvelidze, J B Kaper, J A Johnson, G B Nair, J G Morris

Abstract 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 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Article
  2. VicPred: AFrontiers in microbiology · 2021
    Article
  3. Article
  4. Article
  5. ISFrontiers in microbiology · 2019
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Emergence and evolution of Vibrio cholerae O139.Proceedings of the National Academy of Sciences of the United States of America · 2003
    Article
  13. Genomic profiles of clinical and environmental isolates of Vibrio cholerae O1 in cholera-endemic areas of Bangladesh.Proceedings of the National Academy of Sciences of the United States of America · 2002
    Article
  14. Article
  15. 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

8 authors.

S SozhamannanDivision of Hospital Epidemiology, Department of Medicine, School of Medicine, University of Maryland at Baltimore, Maryland 21201, USA. ssozhama@medicine.umaryland.edu
Y K Deng
M Li
A Sulakvelidze
J B Kaper
J A Johnson
G B Nair
J G Morris

Funding

DEVELOPMENT OF A LIVE ORAL CHOLERA VACCINER01AI019716 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI KAPER, JAMES B · 1989 to 2010
$4.4M
PATHOGENESIS OF NON-01 VIBRIO CHOLERAER01AI028856 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI MORRIS, JOHN GLENN · 1990 to 1997
–
DEVELOPMENT OF A LIVE ORAL CHOLERA VACCINER22AI019716 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI KAPER, JAMES B · 1985 to 1991
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PATHOGENESIS OF NON-01 VIBRIO CHOLERAER22AI028856 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI MORRIS, JOHN GLENN · 1990 to 1991
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NIAID NIH HHS AI135729NIAID NIH HHS AI19716NIAID NIH HHS AI28856NIAID NIH HHS R01 AI019716
6 · The paper itself

Abstract

The DNA sequence of the O-antigen biosynthesis cluster (wbf) of a recently emergent pathogen, Vibrio cholerae serogroup O139, has been determined. Here we report the sequence of the genes downstream of the O139 wbfX gene and analysis of the genes flanking the wbf gene cluster in other serogroups. The gene downstream of wbfX, designated rjg (right junction gene), is predicted to be not required for O-antigen biosynthesis but appears to be a hot spot for DNA rearrangements. Several variants of the rjg gene (three different insertions and a deletion) have been found in other serogroups. DNA dot blot analysis of 106 V. cholerae strains showed the presence of the left and right junction genes, gmhD and rjg, respectively, in all strains. Further, these genes mapped to a single I-CeuI fragment in all 21 strains analyzed by pulsed-field gel electrophoresis, indicating a close linkage. The insertion sequence element IS1358, found in both O1 and O139 wb* regions, is present in 61% of the strains tested; interestingly, where present, it is predominantly linked to the wb* region. These results indicated a cassette-like organization of the wb* region, with the conserved genes (gmhD and rjg) flanking the divergent, serogroup-specific wb* genes and IS1358. A similar organization of the wb* region in other serogroups raises the possibility of the emergence of new pathogens by homologous recombination via the junction genes.

Indexed as

Genes, BacterialMultigene FamilyAmino Acid SequenceBase SequenceCloning, MolecularDNA Transposable ElementsMolecular Sequence DataO AntigensSerotypingVibrio choleraeDNA Transposable ElementsO Antigens

Identifiers

PMID10496875
PMCPMC96850

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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.