Evidence map›Paper›PMID 26824864›Full record

ArticlePloS one2016

Comparison of O-Antigen Gene Clusters of All O-Serogroups of Escherichia coli and Proposal for Adopting a New Nomenclature for O-Typing.

Chitrita DebRoy, Pina M Fratamico, Xianghe Yan, GianMarco Baranzoni, Yanhong Liu, David S Needleman, Robert Tebbs, Catherine D O'Connell, Adam Allred, Michelle Swimley and 5 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 75 papers.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed
12.8field-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

75 citing papers in PubMed, 112 citations in OpenAlex.

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  8. Genomic Markers Distinguishing Shiga Toxin-ProducingPathogens (Basel, Switzerland) · 2025
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  10. Investigating the adherence factors ofMicrobiology spectrum · 2024
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  11. Observational
  12. PmrAB, the two-component system ofJournal of bacteriology · 2024
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  13. Correlation ofInternational journal of molecular sciences · 2024
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  14. Article
  15. Article
  16. Article
  17. Review
  18. O-Polysaccharides of LPS ModulateMicroorganisms · 2023
    Article
  19. Article
  20. False Positives in Brucellosis Serology: Wrong Bait and Wrong Pond?Tropical medicine and infectious disease · 2023
    Review

15 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors at 4 institutions in 1 country.

Chitrita DebRoyE. coli Reference Center, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America.
Pina M FratamicoEastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, Wyndmoor, Pennsylvania, United States of America.
Xianghe YanEastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, Wyndmoor, Pennsylvania, United States of America.
GianMarco BaranzoniEastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, Wyndmoor, Pennsylvania, United States of America.
Yanhong LiuEastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, Wyndmoor, Pennsylvania, United States of America.
David S NeedlemanEastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, Wyndmoor, Pennsylvania, United States of America.
Robert TebbsAnimal Health & Food Safety, Life Sciences Solutions, Thermo Fisher Scientific, Austin, Texas, United States of America.
Catherine D O'ConnellAnimal Health & Food Safety, Life Sciences Solutions, Thermo Fisher Scientific, Austin, Texas, United States of America.
Adam AllredAnimal Health & Food Safety, Life Sciences Solutions, Thermo Fisher Scientific, Austin, Texas, United States of America.
Michelle SwimleyAnimal Health & Food Safety, Life Sciences Solutions, Thermo Fisher Scientific, Austin, Texas, United States of America.
Michael MwangiE. coli Reference Center, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America.
Vivek KapurE. coli Reference Center, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America.
Juan A Raygoza GarayE. coli Reference Center, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America.
Elisabeth L RobertsE. coli Reference Center, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America.
Robab KataniE. coli Reference Center, Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America.
Pennsylvania State University · USAgricultural Research Service · USThermo Fisher Scientific (United States) · USEastern Regional Research Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Escherichia coli strains are classified based on O-antigens that are components of the lipopolysaccharide (LPS) in the cell envelope. O-antigens are important virulence factors, targets of both the innate and adaptive immune system, and play a role in host-pathogen interactions. Because they are highly immunogenic and display antigenic specificity unique for each strain, O-antigens are the biomarkers for designating O-types. Immunologically, 185 O-serogroups and 11 OX-groups exist for classification. Conventional serotyping for O-typing entails agglutination reactions between the O-antigen and antisera generated against each O-group. The procedure is labor intensive, not always accurate, and exhibits equivocal results. In this report, we present the sequences of 71 O-antigen gene clusters (O-AGC) and a comparison of all 196 O- and OX-groups. Many of the designated O-types, applied for classification over several decades, exhibited similar nucleotide sequences of the O-AGCs and cross-reacted serologically. Some O-AGCs carried insertion sequences and others had only a few nucleotide differences between them. Thus, based on these findings, it is proposed that several of the E. coli O-groups may be merged. Knowledge of the O-AGC sequences facilitates the development of molecular diagnostic platforms that are rapid, accurate, and reliable that can replace conventional serotyping. Additionally, with the scientific knowledge presented, new frontiers in the discovery of biomarkers, understanding the roles of O-antigens in the innate and adaptive immune system and pathogenesis, the development of glycoconjugate vaccines, and other investigations, can be explored.

Indexed as

Multigene FamilyPhylogenyAgglutination TestsCross ReactionsEscherichia coliEscherichia coli ProteinsGlycosyltransferasesHumansImmune SeraMembrane Transport ProteinsNucleotidyltransferasesO AntigensSequence Analysis, DNASerogroupSerotypingTerminology as TopicEscherichia coli ProteinsGlycosyltransferasesImmune SeraMembrane Transport ProteinsNucleotidyltransferasesO AntigensWzx protein, E coliWzy polymerase, E coli

Identifiers

PMID26824864
PMCPMC4732683
OpenAlexW2253766069

What OpenQuestion holds

Textmetadata
LicenceCC0
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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.