Evidence map›Paper›PMID 24498018›Full record

ArticlePloS one2014

Biological roles of the O-methyl phosphoramidate capsule modification in Campylobacter jejuni.

Lieke B van Alphen, Cory Q Wenzel, Michele R Richards, Christopher Fodor, Roger A Ashmus, Martin Stahl, Andrey V Karlyshev, Brendan W Wren, Alain Stintzi, William G Miller and 2 more

Abstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing 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

35 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Small worms big discoveries:Frontiers in cellular and infection microbiology · 2025
    Review
  5. Article
  6. Modulation ofFrontiers in cellular and infection microbiology · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Application of Bacteriophages to LimitFrontiers in microbiology · 2021
    Review
  11. Comparison of the Pathogenic Potential ofPathogens (Basel, Switzerland) · 2020
    Article
  12. Distribution of Capsular Types ofThe American journal of tropical medicine and hygiene · 2019
    Article
  13. Article
  14. Bacterial ABNature communications · 2019
    Article
  15. Review
  16. Update on Campylobacter vaccine development.Human vaccines & immunotherapeutics · 2019
    Review
  17. Article
  18. Review
  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

12 authors.

Lieke B van AlphenAlberta Glycomics Centre, Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.
Cory Q WenzelAlberta Glycomics Centre, Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.
Michele R RichardsAlberta Glycomics Centre, Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.
Christopher FodorAlberta Glycomics Centre, Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.
Roger A AshmusAlberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada.
Martin StahlOttawa Institute of Systems Biology, Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Ontario, Canada.
Andrey V KarlyshevSchool of Life Sciences, Kingston University, London, United Kingdom.
Brendan W WrenLondon School of Hygiene and Tropical Medicine, London, United Kingdom.
Alain StintziOttawa Institute of Systems Biology, Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Ontario, Canada.
William G MillerProduce Safety and Microbiology Research Unit, Agricultural Research Service, US Department of Agriculture, Albany, California, United States of America.
Todd L LowaryAlberta Glycomics Centre, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada.
Christine M SzymanskiAlberta Glycomics Centre, Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.

Funding

Biotechnology and Biological Sciences Research Council BB/C519670/1Biotechnology and Biological Sciences Research Council EGA16167
6 · The paper itself

Abstract

Campylobacter jejuni is a major cause of bacterial gastroenteritis worldwide, and the capsular polysaccharide (CPS) of this organism is required for persistence and disease. C. jejuni produces over 47 different capsular structures, including a unique O-methyl phosphoramidate (MeOPN) modification present on most C. jejuni isolates. Although the MeOPN structure is rare in nature it has structural similarity to some synthetic pesticides. In this study, we have demonstrated, by whole genome comparisons and high resolution magic angle spinning NMR, that MeOPN modifications are common to several Campylobacter species. Using MeOPN biosynthesis and transferase mutants generated in C. jejuni strain 81-176, we observed that loss of MeOPN from the cell surface correlated with increased invasion of Caco-2 epithelial cells and reduced resistance to killing by human serum. In C. jejuni, the observed serum mediated killing was determined to result primarily from activation of the classical complement pathway. The C. jejuni MeOPN transferase mutant showed similar levels of colonization relative to the wild-type in chickens, but showed a five-fold drop in colonization when co-infected with the wild-type in piglets. In Galleria mellonella waxmoth larvae, the MeOPN transferase mutant was able to kill the insects at wild-type levels. Furthermore, injection of the larvae with MeOPN-linked monosaccharides or CPS purified from the wild-type strain did not result in larval killing, indicating that MeOPN does not have inherent insecticidal activity.

Indexed as

AmidesAnimalsBacterial AdhesionBacterial CapsulesBacterial ProteinsCaco-2 CellsCampylobacter InfectionsCampylobacter jejuniChickensGene Knockout TechniquesHumansInsecticidesLarvaMicrobial ViabilityMothsPhosphoric AcidsAmidesBacterial ProteinsInsecticidesphosphoramidic acidPhosphoric AcidsPolysaccharides, BacterialTransferases

Identifiers

PMID24498018
PMCPMC3907429

What OpenQuestion holds

Textmetadata
LicenceCC0
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.