Evidence map›Paper›PMID 12874312›Full record

ArticleInfection and immunity2003

Effect of an orphan response regulator on Streptococcus mutans sucrose-dependent adherence and cariogenesis.

Vincent Idone, Stacy Brendtro, Robert Gillespie, Steve Kocaj, Erica Peterson, Mara Rendi, Wayne Warren, Suzanne Michalek, Kirsten Krastel, Dennis Cvitkovitch and 1 more

Abstract read
In one paragraph

Article in Infection and immunity, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing 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

45 citing papers in PubMed.

  1. Article
  2. Review
  3. Exopolysaccharides metabolism and cariogenesis ofJournal of oral microbiology · 2023
    Article
  4. Transposon mutagenesis in oralJournal of oral microbiology · 2022
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Role ofThe Japanese dental science review · 2018
    Review
  12. Article
  13. Review
  14. Review
  15. Acid Stress Response Mechanisms of Group B Streptococci.Frontiers in cellular and infection microbiology · 2017
    Review
  16. Review
  17. Article
  18. Target activation by regulatory RNAs in bacteria.FEMS microbiology reviews · 2015
    Review
  19. Article
  20. Review
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

11 authors.

Vincent IdoneDepartment of Biology, Middlebury College, Middlebury Vermont 05753, USA.
Stacy Brendtro
Robert Gillespie
Steve Kocaj
Erica Peterson
Mara Rendi
Wayne Warren
Suzanne Michalek
Kirsten Krastel
Dennis Cvitkovitch
Grace Spatafora

Funding

VOLATILE SIGNALING IN PHARBITIS NILP20RR016462 · NCRR · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI KIRSHENBAUM, ARI PHILLIP · 2001 to 2011
$31.1M
NOVEL LOCUS AFFECTS MULTIPLE ADHESINS IN S MUTANSR15DE012246 · NIDCR · MIDDLEBURY COLLEGE · PI SPATAFORA, GRACE A. · 1997 to 1997
–
NCRR NIH HHS 1 P20 RR16462NCRR NIH HHS P20 RR016462NIDCR NIH HHS DE12246
6 · The paper itself

Abstract

Streptococcus mutans is the principal acidogenic component of dental plaque that demineralizes tooth enamel, leading to dental decay. Cell-associated glucosyltransferases catalyze the sucrose-dependent synthesis of sticky glucan polymers that, together with glucan binding proteins, promote S. mutans adherence to teeth and cell aggregation. We generated an S. mutans Tn916 transposon mutant, GMS315, which is defective in sucrose-dependent adherence and significantly less cariogenic than the UA130 wild-type progenitor in germfree rats. The results of sodium dodecyl sulfate-polyacrylamide gel electrophoresis, Western blotting, and N-terminal sequence analysis confirmed the absence of a 155-kDa glucosyltransferase S (Gtf-S) from GMS315 protein profiles. Mapping of the unique transposon insertion in GMS315 revealed disruption of a putative regulatory region located upstream of gcrR, a gene previously described by Sato et al. that shares significant amino acid identity with other bacterial response regulators (Y. Sato, Y. Yamamoto, and H. Kizaki, FEMS Microbiol. Lett. 186: 187-191, 2000). The gcrR regulator, which we call "tarC," does not align with any of the 13 proposed two-component signal transduction systems derived from in silico analysis of the S. mutans genome, but rather represents one of several orphan response regulators in the genome. The results of Northern hybridization and/or real-time reverse transcription-PCR experiments reveal increased expression of both Gtf-S and glucan binding protein C (GbpC) in a tarC knockout mutant (GMS900), thereby supporting the notion that TarC acts as a negative transcriptional regulator. In addition, we noted that GMS900 has altered biofilm architecture relative to the wild type and is hypocariogenic in germfree rats. Taken collectively, these findings support a role for signal transduction in S. mutans sucrose-dependent adherence and aggregation and implicate TarC as a potential target for controlling S. mutans-induced cariogenesis.

Indexed as

Amino Acid SequenceAnimalsBacterial AdhesionBacterial ProteinsBase SequenceBiofilmsDental CariesDNA, BacterialGene Expression Regulation, BacterialGenes, BacterialGerm-Free LifeGlucosyltransferasesHumansMicroscopy, Electron, ScanningMolecular Sequence DataMutagenesis, InsertionalBacterial ProteinsDNA, BacterialGlucosyltransferasesSucrose

Identifiers

PMID12874312
PMCPMC166011

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.