Evidence map›Paper›PMID 17593303›Full record

ArticleBMC microbiology2007

Interaction of salivary alpha-amylase and amylase-binding-protein A (AbpA) of Streptococcus gordonii with glucosyltransferase of S. gordonii and Streptococcus mutans.

Biswendu Chaudhuri, Jennifer Rojek, M Margaret Vickerman, Jason M Tanzer, Frank A Scannapieco

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.0field-weighted citation impact, top 27% 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

25 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Amylases: Biofilm Inducer or Biofilm Inhibitor?Frontiers in cellular and infection microbiology · 2021
    Review
  6. Article
  7. Murine Salivary Amylase Protects AgainstFrontiers in physiology · 2021
    Article
  8. Article
  9. Article
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  15. 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 at 2 institutions in 1 country.

Biswendu ChaudhuriDepartment of Oral Biology, School of Dental Medicine, State University of New York at Buffalo, New York, USA. bc28@buffalo.edu <bc28@buffalo.edu>
Jennifer Rojek
M Margaret Vickerman
Jason M Tanzer
Frank A Scannapieco
University at Buffalo, State University of New York · USUConn Health · US

Funding

AMYLASE BINDING STREPTOCOCCI, DENTAL PLAQUE AND CARIESR01DE009838 · NIDCR · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI SCANNAPIECO, FRANK ANDREW · 1998 to 2008
$2.6M
Amylase Binding Streptococci, Dental Plaque and CariesR56DE009838 · NIDCR · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI SCANNAPIECO, FRANK ANDREW · 2011 to 2011
$405k
SALIVARY AMYLASE AND DENTAL PLAQUE FORMATIONR29DE009838 · NIDCR · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI SCANNAPIECO, FRANK ANDREW · 1992 to 1996
–
TITANIUM ALLOYS FOR PARTIAL DENTURESR43DE007034 · NIDCR · GREENMARK, INC. · PI MARKER, BERNARD C · 1985 to 1985
–
NIDCR NIH HHS DE07034NIDCR NIH HHS DE09838NIDCR NIH HHS R01 DE009838
6 · The paper itself

Abstract

backgroundGlucosyltransferases (Gtfs), enzymes that produce extracellular glucans from dietary sucrose, contribute to dental plaque formation by Streptococcus gordonii and Streptococcus mutans. The alpha-amylase-binding protein A (AbpA) of S. gordonii, an early colonizing bacterium in dental plaque, interacts with salivary amylase and may influence dental plaque formation by this organism. We examined the interaction of amylase and recombinant AbpA (rAbpA), together with Gtfs of S. gordonii and S. mutans.

resultsThe addition of salivary alpha-amylase to culture supernatants of S. gordonii precipitated a protein complex containing amylase, AbpA, amylase-binding protein B (AbpB), and the glucosyltransferase produced by S. gordonii (Gtf-G). rAbpA was expressed from an inducible plasmid, purified from Escherichia coli and characterized. Purified rAbpA, along with purified amylase, interacted with and precipitated Gtfs from culture supernatants of both S. gordonii and S. mutans. The presence of amylase and/or rAbpA increased both the sucrase and transferase component activities of S. mutans Gtf-B. Enzyme-linked immunosorbent assay (ELISA) using anti-Gtf-B antibody verified the interaction of rAbpA and amylase with Gtf-B. A S. gordonii abpA-deficient mutant showed greater biofilm growth under static conditions than wild-type in the presence of sucrose. Interestingly, biofilm formation by every strain was inhibited in the presence of saliva.

conclusionThe results suggest that an extracellular protein network of AbpA-amylase-Gtf may influence the ecology of oral biofilms, likely during initial phases of colonization.

Indexed as

alpha-AmylasesBacterial Outer Membrane ProteinsBacterial ProteinsBiofilmsEscherichia coliGene DeletionGlucosyltransferasesHumansPlasmidsProtein BindingRecombinant ProteinsSalivaStreptococcusStreptococcus mutansAbpA protein, Streptococcus gordoniialpha-AmylasesBacterial Outer Membrane ProteinsBacterial ProteinsGlucosyltransferasesGtfG protein, Streptococcus gordoniiRecombinant Proteins

Identifiers

PMID17593303
PMCPMC3225810
OpenAlexW2075369719

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.