Evidence map›Paper›PMID 25385790›Full record

ArticleInfection and immunity2015

The two-component system GrvRS (EtaRS) regulates ace expression in Enterococcus faecalis OG1RF.

Jung Hyeob Roh, Kavindra V Singh, Sabina Leanti La Rosa, Ana Luisa V Cohen, Barbara E Murray

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

8 citing papers in PubMed, 13 citations in OpenAlex.

  1. Review
  2. Article
  3. Enterococcal Genetics.Microbiology spectrum · 2019
    Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. 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

5 authors at 2 institutions in 2 countries.

Jung Hyeob RohDivision of Infectious Diseases, Department of Internal Medicine, The University of Texas Medical School, Houston, Texas, USA Center for the Study of Emerging and Re-emerging Pathogens, The University of Texas Medical School, Houston, Texas, USA Jung.H.Roh@uth.tmc.edu.
Kavindra V SinghDivision of Infectious Diseases, Department of Internal Medicine, The University of Texas Medical School, Houston, Texas, USA Center for the Study of Emerging and Re-emerging Pathogens, The University of Texas Medical School, Houston, Texas, USA.
Sabina Leanti La RosaDivision of Infectious Diseases, Department of Internal Medicine, The University of Texas Medical School, Houston, Texas, USA Department of Chemistry, Biotechnology and Food Science, Laboratory of Microbial Gene Technology and Food Microbiology, Norwegian University of Life Sciences, Ås, Norway.
Ana Luisa V CohenDivision of Infectious Diseases, Department of Internal Medicine, The University of Texas Medical School, Houston, Texas, USA Center for Infectious and Inflammatory Diseases, Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, Texas, USA.
Barbara E MurrayDivision of Infectious Diseases, Department of Internal Medicine, The University of Texas Medical School, Houston, Texas, USA Center for the Study of Emerging and Re-emerging Pathogens, The University of Texas Medical School, Houston, Texas, USA Department of Microbiology and Molecular Genetics, The University of Texas Medical School, Houston, Texas, USA.
The University of Texas at Austin · USNorwegian University of Life Sciences · NO

Funding

ALTERNATIVE APPROACHES FOR E FAECALIS INFECTIONSR37AI047923 · NIAID · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI MURRAY, BARBARA E · 2000 to 2009
$4.0M
Alternative Approaches for E. faecalis InfectionsR01AI047923 · NIAID · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI MURRAY, BARBARA E · 2010 to 2014
$3.1M
NIAID NIH HHS AI047923NIAID NIH HHS R01 AI047923NIAID NIH HHS R37 AI047923
6 · The paper itself

Abstract

Expression of ace (adhesin to collagen of Enterococcus faecalis), encoding a virulence factor in endocarditis and urinary tract infection models, has been shown to increase under certain conditions, such as in the presence of serum, bile salts, urine, and collagen and at 46 °C. However, the mechanism of ace/Ace regulation under different conditions is still unknown. In this study, we identified a two-component regulatory system GrvRS as the main regulator of ace expression under these stress conditions. Using Northern hybridization and β-galactosidase assays of an ace promoter-lacZ fusion, we found transcription of ace to be virtually absent in a grvR deletion mutant under the conditions that increase ace expression in wild-type OG1RF and in the complemented strain. Moreover, a grvR mutant revealed decreased collagen binding and biofilm formation as well as attenuation in a murine urinary tract infection model. Here we show that GrvR plays a major role in control of ace expression and E. faecalis virulence.

Indexed as

Gene Expression Regulation, BacterialAnimalsArtificial Gene FusionBacterial Proteinsbeta-GalactosidaseBlotting, NorthernCarrier ProteinsDisease Models, AnimalEnterococcus faecalisGene DeletionGene Expression ProfilingGenes, ReporterGenetic Complementation TestGram-Positive Bacterial InfectionsMiceTranscription FactorsAce protein, EnterococcusBacterial Proteinsbeta-GalactosidaseCarrier ProteinsTranscription Factors

Identifiers

PMID25385790
PMCPMC4288885
OpenAlexW1990564296

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.