Evidence map›Paper›PMID 36026491›Full record

ArticlePLoS genetics2022

The Vibrio cholerae Seventh Pandemic Islands act in tandem to defend against a circulating phage.

Brendan J O'Hara, Munirul Alam, Wai-Leung Ng

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
9.7field-weighted citation impact, top 1% 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

26 citing papers in PubMed, 45 citations in OpenAlex.

  1. Vibrio cholerae defends its way to success.Nature reviews. Microbiology · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Structural basis for Lamassu-based antiviral immunity and its evolution from DNA repair machinery.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Article
  9. Defence systems encoded by core genomic islands of seventh pandemicPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  10. Understanding phage BX-1 resistance inMicrobiology spectrum · 2025
    Article
  11. Article
  12. AJournal of bacteriology · 2024
    Article
  13. Article
  14. Article
  15. AbioRxiv : the preprint server for biology · 2024
    Article
  16. Article
  17. Article
  18. Sporadic phage defense in epidemicbioRxiv : the preprint server for biology · 2023
    Article
  19. Article
  20. Activation of amBio · 2023
    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

3 authors at 2 institutions in 2 countries.

Brendan J O'HaraDepartment of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, United States of America.ORCID 0000-0003-0138-2744
Munirul AlamInfectious Diseases Division, International Center for Diarrheal Disease Research, Dhaka, Bangladesh.
Wai-Leung NgDepartment of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, United States of America.ORCID 0000-0002-8966-6604
Tufts University · USInternational Centre for Diarrhoeal Disease Research · BD

Funding

SIGNALING MECHANISMS IN VIBRIO CHOLERAE PARALLEL QUORUM SENSING PATHWAYSR01AI121337 · NIAID · TUFTS UNIVERSITY BOSTON · PI NG, WAI-LEUNG · 2016 to 2025
$4.5M
MOLECULAR GENETICS OF BASIC CELL FUNCTIONST32GM007310 · NIGMS · TUFTS UNIVERSITY BOSTON · PI CAMILLI, ANDREW · 1987 to 2020
$3.9M
NIAID NIH HHS R01 AI121337NIGMS NIH HHS T32 GM007310
6 · The paper itself

Abstract

The current circulating pandemic El Tor biotype of Vibrio cholerae has persisted for over sixty years and is characterized by its acquisition of two unique genomic islands called the Vibrio Seventh Pandemic Islands 1 and 2 (VSP-I and VSP-II). However, the functions of most of the genes on VSP-I and VSP-II are unknown and the advantages realized by El Tor through these two islands are not clear. Recent studies have broadly implicated these two mobile genetic elements with phage defense. Still, protection against phage infection through these islands has not been observed directly in any V. cholerae El Tor biotype. Here we report the isolation of a circulating phage from a cholera patient stool sample and demonstrate that propagation of this phage in its native host is inhibited by elements in both VSP-I and VSP-II, providing direct evidence for the role of these genomic islands in phage defense. Moreover, we show that these defense systems are regulated by quorum sensing and active only at certain cell densities. Finally, we have isolated a naturally occurring phage variant that is resistant to the defense conferred by the VSP islands, illustrating the countermeasures used by phages to evade these defense mechanisms. Together, this work demonstrates a functional role for the VSPs in V. cholerae and highlights the key regulatory and mechanistic insights that can be gained by studying anti-phage systems in their native contexts.

Indexed as

BacteriophagesCholeraVibrio cholerae O1Genomic IslandsHumansPandemics

Identifiers

PMID36026491
PMCPMC9455884
OpenAlexW4293155768

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.