Evidence map›Paper›PMID 10388689›Full record

ArticleApplied and environmental microbiology1999

Development of primers to O-antigen biosynthesis genes for specific detection of Escherichia coli O157 by PCR.

J J Maurer, D Schmidt, P Petrosko, S Sanchez, L Bolton, M D Lee

Open access · bronzeAbstract read
In one paragraph

Article in Applied and environmental microbiology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
4.5field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 107 citations in OpenAlex.

  1. Article
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  8. Pepper mild mottle virus as an indicator of fecal pollution.Applied and environmental microbiology · 2009
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  18. Quantitative detection of microbial genes by using DNA microarrays.Applied and environmental microbiology · 2002
    Article
  19. Growth kinetics of Escherichia coli O157:H7 on the epicarp of fresh vegetables and fruits.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]
    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

6 authors at 3 institutions in 1 country.

J J MaurerDepartments of Avian Medicine, University of Georgia, Athens, USA.
D Schmidt
P Petrosko
S Sanchez
L Bolton
M D Lee
Duquesne University · USUniversity of Georgia · USAgricultural Research Service · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The chemical composition of each O-antigen subunit in gram-negative bacteria is a reflection of the unique DNA sequences within each rfb operon. By characterizing DNA sequences contained with each rfb operon, a diagnostic serotype-specific probe to Escherichia coli O serotypes that are commonly associated with bacterial infections can be generated. Recently, from an E. coli O157:H7 cosmid library, O-antigen-positive cosmids were identified with O157-specific antisera. By using the cosmid DNAs as probes, several DNA fragments which were unique to E. coli O157 serotypes were identified by Southern analysis. Several of these DNA fragments were subcloned from O157-antigen-positive cosmids and served as DNA probes in Southern analysis. One DNA fragment within plasmid pDS306 which was specific for E. coli O157 serotypes was identified by Southern analysis. The DNA sequence for this plasmid revealed homology to two rfb genes, the first of which encodes a GDP-mannose dehydratase. These rfb genes were similar to O-antigen biosynthesis genes in Vibrio cholerae and Yersinia enterocolitica serotype O:8. An oligonucleotide primer pair was designed to amplify a 420-bp DNA fragment from E. coli O157 serotypes. The PCR test was specific for E. coli O157 serotypes. PCR detected as few as 10 cells with the O157-specific rfb oligonucleotide primers. Coupled with current enrichment protocols, O157 serotyping by PCR will provide a rapid, specific, and sensitive method for identifying E. coli O157.

Indexed as

DNA PrimersGenes, BacterialAnimalsBlotting, SouthernCattleCosmidsEscherichia coli O157FecesGene LibraryLipopolysaccharidesMilkMolecular Sequence DataO AntigensOperonPolymerase Chain ReactionSensitivity and SpecificityDNA PrimersLipopolysaccharidesO Antigens

Identifiers

PMID10388689
PMCPMC91442
OpenAlexW1854388373

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.