Evidence map›Paper›PMID 23974022›Full record

ArticleJournal of bacteriology2013

Library screen identifies Enterococcus faecalis CcpA, the catabolite control protein A, as an effector of Ace, a collagen adhesion protein linked to virulence.

Peng Gao, Kenneth L Pinkston, Agathe Bourgogne, Melissa R Cruz, Danielle A Garsin, Barbara E Murray, Barrett R Harvey

Open access · bronzeAbstract read
In one paragraph

Article in Journal of bacteriology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.7field-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

19 citing papers in PubMed, 28 citations in OpenAlex.

  1. Biofilm dispersion inbioRxiv : the preprint server for biology · 2026
    Article
  2. Insights into ecology, pathogenesis, and biofilm formation ofMicrobiology and molecular biology reviews : MMBR · 2025
    Review
  3. Article
  4. Article
  5. Virulence · 2019
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. International journal of microbiology · 2018
    Article
  12. Article
  13. Morphine Promotes Colonization of Anastomotic Tissues with Collagenase - Producing Enterococcus faecalis and Causes Leak.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2016
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Targeting pili in enterococcal pathogenesis.Infection and immunity · 2014
    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

7 authors at 2 institutions in 1 country.

Peng GaoCenter for Molecular Imaging, Brown Foundation Institute of Molecular Medicine for the Prevention of Human Diseases, Division of Applied Biologics, The University of Texas Health Science Center at Houston, Houston, Texas, USA.
Kenneth L Pinkston
Agathe Bourgogne
Melissa R Cruz
Danielle A Garsin
Barbara E Murray
Barrett R Harvey
The University of Texas Health Science Center at Houston · USBrown Foundation · US

Funding

The Role of Reactive Oxygen Species in Mucosal Innate ImmunityR01AI076406 · NIAID · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI GARSIN, DANIELLE A · 2009 to 2019
$3.2M
Alternative Approaches for E. faecalis InfectionsR01AI047923 · NIAID · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI MURRAY, BARBARA E · 2010 to 2014
$3.1M
Mechanism of Gene Regulation by RNA-Binding ANTAR ProteinsR56AI093699 · NIAID · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI GARSIN, DANIELLE A, WINKLER, WADE · 2011 to 2011
$399k
NIAID NIH HHS R01 AI047923NIAID NIH HHS R01 AI047923-14NIAID NIH HHS R01 AI076406NIAID NIH HHS R01AI076406NIAID NIH HHS R56 AI093699NIAID NIH HHS R56AI093699
6 · The paper itself

Abstract

The Enterococcus faecalis cell wall-anchored protein Ace is an important virulence factor involved in cell adhesion and infection. Expression of Ace on the cell surface is affected by many factors, including stage of growth, culture temperature, and environmental components, such as serum, urine, and collagen. However, the mechanisms that regulate or modulate Ace display are not well understood. With interest in identifying genes associated with Ace expression, we utilized a whole-cell enzyme-linked immunosorbent assay (ELISA)-based screening method to identify mutants from a transposon insertion mutant library which exhibited distinct Ace surface expression profiles. We identified a ccpA insertion mutant which showed significantly decreased levels of Ace surface expression at early growth phase versus those of wild-type OG1RF. Confirmation of the observation was achieved through flow cytometry and complementation analysis. Compared to the wild type, the E. faecalis ccpA mutant had an impaired ability to adhere to collagen when grown to early exponential phase, consistent with the lack of Ace expression in the early growth phase. As a key component of carbon catabolite regulation, CcpA has been previously reported to play a critical role in regulating expression of proteins involved in E. faecalis carbohydrate uptake and utilization. Our discovery is the first to associate CcpA with the production of a major E. faecalis virulence factor, providing new insights into the regulation of E. faecalis pathogenesis.

Indexed as

Bacterial AdhesionBacterial ProteinsCarrier ProteinsEnterococcus faecalisGene Expression Regulation, BacterialGene LibraryGenetic Complementation TestMutationRNA, BacterialRNA, MessengerVirulenceAce protein, EnterococcusBacterial ProteinsCarrier ProteinsRNA, BacterialRNA, Messenger

Identifiers

PMID23974022
PMCPMC3807442
OpenAlexW2114003641

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.