Evidence map›Paper›PMID 8335343›Full record

ArticleInfection and immunity1993

Role of the YadA protein in prevention of opsonization of Yersinia enterocolitica by C3b molecules.

B China, M P Sory, B T N'Guyen, M De Bruyere, G R Cornelis

Abstract read
In one paragraph

Article in Infection and immunity, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing 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

54 citing papers in PubMed.

  1. Review
  2. Yersinia enterocolitica in Crohn's disease.Frontiers in cellular and infection microbiology · 2023
    Review
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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

5 authors.

B ChinaMicrobial Pathogenesis Unit, Université Catholique de Louvain, Brussels, Belgium.
M P Sory
B T N'Guyen
M De Bruyere
G R Cornelis

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

When mixed with normal human serum, wild-type pathogenic Yersinia enterocolitica, previously incubated at 37 degrees C, fixed less C3b than its variant cured of the virulence plasmid pYV. Mutants unable to secrete the Yop proteins were still protected against C3b deposition. By contrast, mutants deficient in the production of outer membrane protein YadA fixed more C3b than their YadA+ parent. Gene yadA, cloned as a minimal polymerase chain reaction fragment and introduced in trans, complemented the mutations. Production of YadA by recombinant Escherichia coli LK111 also resulted in a reduction of the amount of C3b deposited on the bacterial surface. The reduction of C3b at the surface of Y. enterocolitica YadA+ compared with YadA- cells correlated with an increase of the amount of factor H fixed at the bacterial surface. The YadA monomer separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and transferred to a nitrocellulose membrane was able to bind factor H. We conclude that factor H bound to YadA reduces the C3b deposition on the bacterial surface, probably by a rapid inactivation of C3b.

Indexed as

Adhesins, BacterialPhagocytosisBacterial AdhesionBacterial Outer Membrane ProteinsBase SequenceComplement C3bComplement Factor HHumansMolecular Sequence DataOpsonin ProteinsYersinia enterocoliticaAdhesins, BacterialBacterial Outer Membrane ProteinsCFH protein, humanComplement C3bComplement Factor HOpsonin ProteinsYadA protein, Yersinia

Identifiers

PMID8335343
PMCPMC280979

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Registered trials

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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.