Evidence map›Paper›PMID 9826345›Full record

ArticleInfection and immunity1998

Cloning, expression, and sequencing of a cell surface antigen containing a leucine-rich repeat motif from Bacteroides forsythus ATCC 43037.

A Sharma, H T Sojar, I Glurich, K Honma, H K Kuramitsu, R J Genco

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 36% 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

86 citing papers in PubMed, 1 synthesis or guideline pooled it, 153 citations in OpenAlex.

  1. Pooled it
  2. Trial
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  12. New insights into the putative role of leucine-rich repeat proteins ofFrontiers in cellular and infection microbiology · 2024
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  15. Lung Abscess Caused byInfection and drug resistance · 2023
    Article
  16. The Association betweenInternational journal of environmental research and public health · 2022
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  17. Review
  18. Shut-Down of Type IX Protein Secretion Alters the Host Immune Response toFrontiers in cellular and infection microbiology · 2022
    Article
  19. Article
  20. Article

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

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 2 institutions in 2 countries.

A SharmaDepartment of Oral Biology, School of Dental Medicine, State University of New York at Buffalo, Buffalo, New York 14214, USA. sharmaa@acsu.buffalo.edu
H T Sojar
I Glurich
K Honma
H K Kuramitsu
R J Genco
University of Dental Medicine · MMUniversity at Buffalo, State University of New York · US

Funding

THERAPY AND PREVENTION OF PERIODONTAL DISEASESP50DE004898 · NIDCR · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI DE NARDIN, ERNESTO · 1985 to 1998
–
S GORDONII AS A VECTOR FOR P GINGIVALIS FIMBRILLINR01DE012320 · NIDCR · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI SHARMA, ASHU · 1997 to 1999
–
NIDCR NIH HHS DE04898NIDCR NIH HHS DE12320-01
6 · The paper itself

Abstract

Bacteroides forsythus is a recently recognized human periodontopathogen associated with advanced, as well as recurrent, periodontitis. However, very little is known about the mechanism of pathogenesis of this organism. The present study was undertaken to identify the surface molecules of this bacterium that may play roles in its adherence to oral tissues or triggering of a host immune response(s). The gene (bspA) encoding a cell surface-associated protein of B. forsythus with an apparent molecular mass of 98 kDa was isolated by immunoscreening of a B. forsythus gene library constructed in a lambda ZAP II vector. The encoded 98-kDa protein (BspA) contains 14 complete repeats of 23 amino acid residues that show partial homology to leucine-rich repeat motifs. A recombinant protein containing the repeat region was expressed in Escherichia coli, purified, and utilized for antibody production, as well as in vitro binding studies. The purified recombinant protein bound strongly to fibronectin and fibrinogen in a dose-dependent manner and further inhibited the binding of B. forsythus cells to these extracellular matrix (ECM) components. In addition, adult patients with B. forsythus-associated periodontitis expressed specific antibodies against the BspA protein. We report here the cloning and expression of an immunogenic cell surface-associated protein (BspA) of B. forsythus and speculate that it mediates the binding of bacteria to ECM components and clotting factors (fibronectin and fibrinogen, respectively), which may be important in the colonization of the oral cavity by this bacterium and is also a target for the host immune response.

Indexed as

Antigens, BacterialBacterial ProteinsLeucineRepetitive Sequences, Amino AcidAmino Acid SequenceAntigens, SurfaceBacterial AdhesionBacteroidesBase SequenceBinding, CompetitiveCloning, MolecularEscherichia coliFibrinogenFibronectinsHumansMolecular Sequence DataAntigens, BacterialAntigens, SurfaceBacterial ProteinsBspA protein, BacteroidesFibrinogenFibronectinsLeucineRecombinant Proteins

Identifiers

PMID9826345
PMCPMC108721
OpenAlexW2142726625

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.