Evidence map›Paper›PMID 19151136›Full record

ArticleJournal of bacteriology2009

A DNase encoded by integrated element CJIE1 inhibits natural transformation of Campylobacter jejuni.

Esther J Gaasbeek, Jaap A Wagenaar, Magalie R Guilhabert, Marc M S M Wösten, Jos P M van Putten, Linda van der Graaf-van Bloois, Craig T Parker, Fimme J van der Wal

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
5.7field-weighted citation impact, top 5% 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

37 citing papers in PubMed, 59 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Manipulation of natural transformation by AbaR-type islands promotes fixation of antibiotic resistance inProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. International journal of molecular sciences · 2021
    Review
  12. Article
  13. AMicrobial genomics · 2021
    Article
  14. Article
  15. Article
  16. Application of Bacteriophages to LimitFrontiers in microbiology · 2021
    Review
  17. Natural Competence and Horizontal Gene Transfer in Campylobacter.Current topics in microbiology and immunology · 2021
    Article
  18. Article
  19. Article
  20. 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 at 4 institutions in 2 countries.

Esther J GaasbeekDepartment of Bacteriology and TSEs, Central Veterinary Institute of Wageningen UR, Lelystad, The Netherlands.
Jaap A Wagenaar
Magalie R Guilhabert
Marc M S M Wösten
Jos P M van Putten
Linda van der Graaf-van Bloois
Craig T Parker
Fimme J van der Wal
Utrecht University · NLWageningen University & Research · NLAgricultural Research Service · USUnited States Department of Agriculture · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The species Campylobacter jejuni is considered naturally competent for DNA uptake and displays strong genetic diversity. Nevertheless, nonnaturally transformable strains and several relatively stable clonal lineages exist. In the present study, the molecular mechanism responsible for the nonnatural transformability of a subset of C. jejuni strains was investigated. Comparative genome hybridization indicated that C. jejuni Mu-like prophage integrated element 1 (CJIE1) was more abundant in nonnaturally transformable C. jejuni strains than in naturally transformable strains. Analysis of CJIE1 indicated the presence of dns (CJE0256), which is annotated as a gene encoding an extracellular DNase. DNase assays using a defined dns mutant and a dns-negative strain expressing Dns from a plasmid indicated that Dns is an endogenous DNase. The DNA-hydrolyzing activity directly correlated with the natural transformability of the knockout mutant and the dns-negative strain expressing Dns from a plasmid. Analysis of a broader set of strains indicated that the majority of nonnaturally transformable strains expressed DNase activity, while all naturally competent strains lacked this activity. The inhibition of natural transformation in C. jejuni via endogenous DNase activity may contribute to the formation of stable lineages in the C. jejuni population.

Indexed as

DNA Transposable ElementsTransformation, BacterialBacterial ProteinsCampylobacter jejuniDeoxyribonucleasesBacterial ProteinsDeoxyribonucleasesDNA Transposable Elements

Identifiers

PMID19151136
PMCPMC2655492
OpenAlexW2171813645

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.