Evidence map›Paper›PMID 29686372›Full record

ArticleScientific reports2018

Rgg-Shp regulators are important for pneumococcal colonization and invasion through their effect on mannose utilization and capsule synthesis.

Xiangyun Zhi, Iman Tajer Abdullah, Ozcan Gazioglu, Irfan Manzoor, Sulman Shafeeq, Oscar P Kuipers, N Luisa Hiller, Peter W Andrew, Hasan Yesilkaya

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

31 citing papers in PubMed, 53 citations in OpenAlex.

  1. RggmBio · 2026
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  8. Biological puzzles solved by usingJournal of bacteriology · 2024
    Review
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  11. Molecular Aspects of the Functioning of Pathogenic Bacteria Biofilm Based onInternational journal of molecular sciences · 2024
    Review
  12. MicroMagnify: A Multiplexed Expansion Microscopy Method for Pathogens and Infected Tissues.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Streptococcal peptides and their roles in host-microbe interactions.Frontiers in cellular and infection microbiology · 2023
    Review
  19. Article
  20. 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

9 authors at 4 institutions in 4 countries.

Xiangyun ZhiDepartment of Infection, Immunity & Inflammation, University of Leicester, Leicester, LE1 9HN, UK.
Iman Tajer AbdullahDepartment of Infection, Immunity & Inflammation, University of Leicester, Leicester, LE1 9HN, UK.
Ozcan GaziogluDepartment of Infection, Immunity & Inflammation, University of Leicester, Leicester, LE1 9HN, UK.
Irfan ManzoorMolecular Genetics, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands.
Sulman ShafeeqMolecular Genetics, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands.
Oscar P KuipersMolecular Genetics, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands.
N Luisa HillerDepartment of Biological Sciences, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA, 15213, USA.
Peter W AndrewDepartment of Infection, Immunity & Inflammation, University of Leicester, Leicester, LE1 9HN, UK.
Hasan YesilkayaDepartment of Infection, Immunity & Inflammation, University of Leicester, Leicester, LE1 9HN, UK. hy3@le.ac.uk.ORCID 0000-0003-3617-1437
University of Leicester · GBUniversity of Groningen · NLCarnegie Mellon University · USUniversity of Kirkuk · IQ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microbes communicate with each other by using quorum sensing (QS) systems and modulate their collective 'behavior' for in-host colonization and virulence, biofilm formation, and environmental adaptation. The recent increase in genome data availability reveals the presence of several putative QS sensing circuits in microbial pathogens, but many of these have not been functionally characterized yet, despite their possible utility as drug targets. To increase the repertoire of functionally characterized QS systems in bacteria, we studied Rgg144/Shp144 and Rgg939/Shp939, two putative QS systems in the important human pathogen Streptococcus pneumoniae. We find that both of these QS circuits are induced by short hydrophobic peptides (Shp) upon sensing sugars found in the respiratory tract, such as galactose and mannose. Microarray analyses using cultures grown on mannose and galactose revealed that the expression of a large number of genes is controlled by these QS systems, especially those encoding for essential physiological functions and virulence-related genes such as the capsular locus. Moreover, the array data revealed evidence for cross-talk between these systems. Finally, these Rgg systems play a key role in colonization and virulence, as deletion mutants of these QS systems are attenuated in the mouse models of colonization and pneumonia.

Indexed as

Quorum SensingAnimalsBacterial CapsulesBacterial ProteinsFemaleGalactoseGene Expression Regulation, BacterialMannoseMicePeptide FragmentsPneumococcal InfectionsStreptococcus pneumoniaeVirulenceBacterial ProteinsGalactoseMannosePeptide Fragments

Identifiers

PMID29686372
PMCPMC5913232
OpenAlexW2799314805

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.