Evidence map›Paper›PMID 23873915›Full record

ArticleJournal of bacteriology2013

Redundant group a streptococcus signaling peptides exhibit unique activation potentials.

Breah LaSarre, Jennifer C Chang, Michael J Federle

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
3.3field-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

19 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Streptococcal peptides and their roles in host-microbe interactions.Frontiers in cellular and infection microbiology · 2023
    Review
  7. Article
  8. Article
  9. A novel chemical inducer ofThe Journal of biological chemistry · 2018
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Quorum sensing in group A Streptococcus.Frontiers in cellular and infection microbiology · 2014
    Review
  19. 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

3 authors at 1 institution in 1 country.

Breah LaSarreDepartment of Medicinal Chemistry and Pharmacognosy, Center for Pharmaceutical Biotechnology, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA.
Jennifer C Chang
Michael J Federle
University of Illinois Chicago · US

Funding

Mechanistic Dissection of Pheromone-Dependent Regulation of Group A StreptococcalR01AI091779 · NIAID · UNIVERSITY OF ILLINOIS AT CHICAGO · PI FEDERLE, MICHAEL J · 2011 to 2021
$3.9M
NIAID NIH HHS AI091779NIAID NIH HHS R01 AI091779
6 · The paper itself

Abstract

All bacterial quorum sensing (QS) systems are based on the production, secretion, and detection of small signaling molecules. Gram-positive bacteria typically use small peptides as QS effectors, and each QS circuit generally requires the interaction of a single signaling molecule with a single receptor protein. The recently described Rgg2 and Rgg3 (Rgg2/3) regulatory circuit of Streptococcus pyogenes (group A streptococcus [GAS]) is one of only a few QS circuits known to utilize multiple signaling peptides. In this system, two distinct, endogenously produced peptide pheromones (SHP2 and SHP3) both function to activate the QS circuit. The aim of this study was to further define the roles of SHP2 and SHP3 in activation of the Rgg2/3 QS system, specifically with regard to shp gene identity and dosage. Results from our studies using transcriptional reporters and isogenic GAS mutants demonstrate that shp gene dosage does contribute to Rgg2/3 system induction, as decreased gene dosage results in decreased or absent induction. Beyond this, however, data indicate that the shp genes possess distinct potentials for supporting system activation, with shp3 more readily able to support system activation than shp2. Studies using synthetic peptides and shp gene mutants indicate that the disparate activities of endogenous SHPs are due to production, rather than signaling, differences and are conferred by the N-terminal regions rather than the C-terminal signaling regions of the peptides. These data provide evidence that the N-terminal, noneffector sequences of SHP pheromones influence their production efficiencies and thereby the relative activation potentials of endogenous SHPs.

Indexed as

Gene Expression Regulation, BacterialBacterial ProteinsPheromonesProtein Sorting SignalsQuorum SensingSignal TransductionStreptococcus pyogenesTrans-ActivatorsBacterial ProteinsPheromonesProtein Sorting Signalsrgg protein, StreptococcusTrans-Activators

Identifiers

PMID23873915
PMCPMC3754750
OpenAlexW2034420288

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.