Evidence map›Paper›PMID 19146535›Full record

ArticleLetters in applied microbiology2008

Involvement of Streptococcus mutans regulator RR11 in oxidative stress response during biofilm growth and in the development of genetic competence.

J A Perry, C M Lévesque, P Suntharaligam, R W Mair, M Bu, R T Cline, S N Peterson, D G Cvitkovitch

Open access · greenAbstract read
In one paragraph

Article in Letters in applied microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 25 citations in OpenAlex.

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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

8 authors at 2 institutions in 2 countries.

J A PerryDental Research Institute, Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.
C M Lévesque
P Suntharaligam
R W Mair
M Bu
R T Cline
S N Peterson
D G Cvitkovitch
University of Toronto · CAJ. Craig Venter Institute · US

Funding

Pathogen Functional Genomics Resource Center N01AI15447 · NIAID · J. CRAIG VENTER INSTITUTE, INC. · PI FRANKLIN, CRAIG · 2008 to 2011
$46.9M
The competence regulon in Streptococcus mutans biofilmsR01DE013230 · NIDCR · UNIVERSITY OF TORONTO · PI CVITKOVITCH, DENNIS G. · 1999 to 2011
$3.2M
NIAID NIH HHS N01 AI015447NIAID NIH HHS N01 AI 15447NIDCR NIH HHS DE 013230NIDCR NIH HHS R01 DE013230
6 · The paper itself

Abstract

aimsTo identify the genes regulated by RR11, the regulator of the Streptococcus mutans HK/RR11 two-component system. METHODS AND

resultsThe S. mutans RR11-encoding gene was inactivated, and the effects of gene disruption on the cell's ability to form biofilms under stresses and acquire extracellular DNA were tested. Biofilm was reduced in cells lacking RR11 following exposure to oxidative stress. RR11-defective cells showed approx. 20-fold reduction in transformation efficiency. Microarray used to decipher the RR11-regulated genes in biofilm showed that approx. 5% of the UA159 genome underwent a significant change in expression. RR11 was found to regulate 174 genes, including genes involved in competence, stress-response and cell division.

conclusionsTarget genes controlled by RR11during biofilm growth have been identified by a comparison of transcriptional profiles between an RR11 defective mutant and the parental strain. The results demonstrated that RR11 is involved in the control of diverse cellular processes, including the formation of biofilm under oxidative stress and development of genetic competence. SIGNIFICANCE AND IMPACT OF THE STUDY: The regulator of HK/RR11 system controls a large regulon and is an important regulator involved in stress response during S. mutans biofilm growth enabling the survival and persistence of its progeny in the microbial community.

Indexed as

Gene Expression Regulation, BacterialOxidative StressTransformation, BacterialBacterial ProteinsBiofilmsGene Expression ProfilingGene Knockout TechniquesOligonucleotide Array Sequence AnalysisSignal TransductionStreptococcus mutansBacterial Proteins

Identifiers

PMID19146535
PMCPMC2771662
OpenAlexW2047436386

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.