Evidence map›Paper›PMID 21521360›Full record

ArticleFEMS microbiology letters2011

Transcriptional repressor Rex is involved in regulation of oxidative stress response and biofilm formation by Streptococcus mutans.

Jacob P Bitoun, Anne H Nguyen, Yuwei Fan, Robert A Burne, Zezhang T Wen

Open access · bronzeAbstract read
In one paragraph

Article in FEMS microbiology letters, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
6.0field-weighted citation impact, top 3% 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

48 citing papers in PubMed, 70 citations in OpenAlex.

  1. An XRE-type regulator inMicrobiology spectrum · 2026
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  8. Diaryl Urea Derivative Molecule Inhibits CariogenicFrontiers in cellular and infection microbiology · 2022
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  13. Metallomics : integrated biometal science · 2020
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  14. Azalomycin FInternational journal of molecular sciences · 2020
    Article
  15. Review
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  18. Article
  19. NADH-Mediated Gene Expression inFrontiers in microbiology · 2018
    Article
  20. 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

5 authors at 2 institutions in 1 country.

Jacob P BitounDepartment of Oral and Craniofacial Biology, School of Dentistry, Louisiana State University Health Sciences Center, New Orleans, USA.
Anne H Nguyen
Yuwei Fan
Robert A Burne
Zezhang T Wen
Louisiana State University Health Sciences Center New Orleans · USUniversity of Florida · US

Funding

GENETICS AND PHYSIOLOGY OF ORAL BIOFILMSR01DE013239 · NIDCR · UNIVERSITY OF ROCHESTER · PI BURNE, ROBERT A · 1999 to 2019
$6.6M
BrpA in Virulence Modulation of Streptococcus mutansR01DE019452 · NIDCR · LSU HEALTH SCIENCES CENTER · PI ZEZHANG TOM WEN, Hui Wu · 2009 to 2026
$6.3M
Oxygen and Streptococcus mutans VirulenceR01DE019106 · NIDCR · UNIVERSITY OF FLORIDA · PI BURNE, ROBERT A · 2009 to 2010
$586k
NIDCR NIH HHS R01 DE013239NIDCR NIH HHS R01 DE019106NIDCR NIH HHS R01 DE019452
6 · The paper itself

Abstract

The transcriptional repressor Rex has been implicated in the regulation of energy metabolism and fermentative growth in response to redox potential. Streptococcus mutans, the primary causative agent of human dental caries, possesses a gene that encodes a protein with high similarity to members of the Rex family of proteins. In this study, we showed that Rex-deficiency compromised the ability of S. mutans to cope with oxidative stress and to form biofilms. The Rex-deficient mutant also accumulated less biofilm after 3 days than the wild-type strain, especially when grown in sucrose-containing medium, but produced more extracellular glucans than the parental strain. Rex-deficiency caused substantial alterations in gene transcription, including those involved in heterofermentative metabolism, NAD(+) regeneration and oxidative stress. Among the upregulated genes was gtfC, which encodes glucosyltransferase C, an enzyme primarily responsible for synthesis of water-insoluble glucans. These results reveal that Rex plays an important role in oxidative stress responses and biofilm formation by S. mutans.

Indexed as

BiofilmsBacterial ProteinsGlucansGlucosyltransferasesMicroscopy, Electron, ScanningMutationNADOxidation-ReductionOxidative StressRegulonRepressor ProteinsReverse Transcriptase Polymerase Chain ReactionStreptococcus mutansBacterial ProteinsBrpA protein, Streptococcus mutansGlucansGlucosyltransferasesNADRepressor Proteins

Identifiers

PMID21521360
PMCPMC3115380
OpenAlexW1962786227

What OpenQuestion holds

Textmetadata
LicenceTDM
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.