Evidence map›Paper›PMID 22958383›Full record

ArticleMolecular oral microbiology2012

Novel iron-regulated and Fur-regulated small regulatory RNAs in Aggregatibacter actinomycetemcomitans.

J J Amarasinghe, T D Connell, F A Scannapieco, E M Haase

Abstract read
In one paragraph

Article in Molecular oral microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 18% 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

15 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Small RNA repertoires and their intraspecies variation in Aggregatibacter actinomycetemcomitans.DNA research : an international journal for rapid publication of reports on genes and genomes · 2018
    Article
  5. Article
  6. Frontiers in microbiology · 2017
    Article
  7. Article
  8. Article
  9. [Role of small noncoding RNA in the regulation of bacterial virulence].Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2016
    Review
  10. Article
  11. Article
  12. Article
  13. Mechanisms of post-transcriptional gene regulation in bacterial biofilms.Frontiers in cellular and infection microbiology · 2014
    Review
  14. Review
  15. 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

4 authors at 1 institution in 1 country.

J J AmarasingheDepartment of Oral Biology, School of Dental Medicine, University at Buffalo, State University of New York, Buffalo, NY 14214, USA.
T D Connell
F A Scannapieco
E M Haase
University at Buffalo, State University of New York · US

Funding

TRAINING PROGRAM IN PERIODONTAL DISEASEST32DE007034 · NIDCR · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI SCANNAPIECO, FRANK ANDREW · 1985 to 2008
$3.5M
TITANIUM ALLOYS FOR PARTIAL DENTURESR43DE007034 · NIDCR · GREENMARK, INC. · PI MARKER, BERNARD C · 1985 to 1985
–
NIDCR NIH HHS DE007034NIDCR NIH HHS T32 DE007034
6 · The paper itself

Abstract

Iron can regulate biofilm formation via non-coding small RNA (sRNA). To determine if iron-regulated sRNAs are involved in biofilm formation by the periodontopathogen Aggregatibacter actinomycetemcomitans, total RNA was isolated from bacteria cultured with iron supplementation or chelation. Transcriptional analysis demonstrated that the expression of four sRNA molecules (JA01-JA04) identified by bioinformatics was significantly upregulated in iron-limited medium compared with iron-rich medium. A DNA fragment encoding each sRNA promoter was able to titrate Escherichia coli ferric uptake regulator (Fur) from a Fur-repressible reporter fusion in an iron uptake regulator titration assay. Cell lysates containing recombinant AaFur shifted the mobility of sRNA-specific DNAs in a gel shift assay. Potential targets of these sRNAs, determined in silico, included genes involved in biofilm formation. The A. actinomycetemcomitans overexpressing JA03 sRNA maintained a rough phenotype on agar, but no longer adhered to uncoated polystyrene or glass, although biofilm determinant gene expression was only modestly decreased. In summary, these sRNAs have the ability to modulate biofilm formation, but their functional target genes remain to be confirmed.

Indexed as

Aggregatibacter actinomycetemcomitansBacterial AdhesionBacterial ProteinsBiofilmsConsensus SequenceGene Expression Regulation, BacterialGenes, ReporterHumansIronMetalloproteinsMutationPhenotypePlasmidsRepressor ProteinsRNA, BacterialRNA, Small UntranslatedBacterial Proteinsferric uptake regulating proteins, bacterialIronMetalloproteinsRepressor ProteinsRNA, BacterialRNA, Small UntranslatedTrans-Activators

Identifiers

PMID22958383
PMCPMC3442931
OpenAlexW2138990989

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.