Evidence map›Paper›PMID 27432973›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

Silencing of natural transformation by an RNA chaperone and a multitarget small RNA.

Laetitia Attaiech, Aïda Boughammoura, Céline Brochier-Armanet, Omran Allatif, Flora Peillard-Fiorente, Ross A Edwards, Ayat R Omar, Andrew M MacMillan, Mark Glover, Xavier Charpentier

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
–field-weighted citation impact
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

58 citing papers in PubMed.

  1. Article
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  4. RNA recognition by minimal ProQ fromRNA (New York, N.Y.) · 2025
    Article
  5. Article
  6. Journal of bacteriology · 2024
    Review
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  10. Article
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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

10 authors.

Laetitia AttaiechCNRS UMR5240, Microbiologie Adaptation et Pathogénie, 69622 Villeurbanne, France; Université Claude Bernard Lyon 1, 69100 Villeurbanne, France; International Center for Infectiology Research (CIRI), International Center for Infectiology Research, Université de Lyon, 69364 Lyon, France; INSERM U1111, 69364 Lyon, France; Ecole Normale Supérieure de Lyon, 69364 Lyon, France; Université Claude Bernard Lyon 1, Centre International de Recherche en Infectiologie, 69364 Lyon, France; CNRS UMR5308, 69007 Lyon, France;
Aïda BoughammouraCNRS UMR5240, Microbiologie Adaptation et Pathogénie, 69622 Villeurbanne, France; Université Claude Bernard Lyon 1, 69100 Villeurbanne, France;
Céline Brochier-ArmanetLaboratoire de Biométrie et Biologie Evolutive, CNRS UMR5558, Université de Lyon, Université Lyon 1, F-69622 Villeurbanne, France;
Omran AllatifInternational Center for Infectiology Research (CIRI), International Center for Infectiology Research, Université de Lyon, 69364 Lyon, France; INSERM U1111, 69364 Lyon, France; Ecole Normale Supérieure de Lyon, 69364 Lyon, France; Université Claude Bernard Lyon 1, Centre International de Recherche en Infectiologie, 69364 Lyon, France; CNRS UMR5308, 69007 Lyon, France;
Flora Peillard-FiorenteCNRS UMR5240, Microbiologie Adaptation et Pathogénie, 69622 Villeurbanne, France; Université Claude Bernard Lyon 1, 69100 Villeurbanne, France;
Ross A EdwardsDepartment of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada.
Ayat R OmarDepartment of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada.
Andrew M MacMillanDepartment of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada.
Mark GloverDepartment of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada.
Xavier CharpentierCNRS UMR5240, Microbiologie Adaptation et Pathogénie, 69622 Villeurbanne, France; Université Claude Bernard Lyon 1, 69100 Villeurbanne, France; International Center for Infectiology Research (CIRI), International Center for Infectiology Research, Université de Lyon, 69364 Lyon, France; INSERM U1111, 69364 Lyon, France; Ecole Normale Supérieure de Lyon, 69364 Lyon, France; Université Claude Bernard Lyon 1, Centre International de Recherche en Infectiologie, 69364 Lyon, France; CNRS UMR5308, 69007 Lyon, France; xavier.charpentier@univ-lyon1.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A highly conserved DNA uptake system allows many bacteria to actively import and integrate exogenous DNA. This process, called natural transformation, represents a major mechanism of horizontal gene transfer (HGT) involved in the acquisition of virulence and antibiotic resistance determinants. Despite evidence of HGT and the high level of conservation of the genes coding the DNA uptake system, most bacterial species appear non-transformable under laboratory conditions. In naturally transformable species, the DNA uptake system is only expressed when bacteria enter a physiological state called competence, which develops under specific conditions. Here, we investigated the mechanism that controls expression of the DNA uptake system in the human pathogen Legionella pneumophila We found that a repressor of this system displays a conserved ProQ/FinO domain and interacts with a newly characterized trans-acting sRNA, RocR. Together, they target mRNAs of the genes coding the DNA uptake system to control natural transformation. This RNA-based silencing represents a previously unknown regulatory means to control this major mechanism of HGT. Importantly, these findings also show that chromosome-encoded ProQ/FinO domain-containing proteins can assist trans-acting sRNAs and that this class of RNA chaperones could play key roles in post-transcriptional gene regulation throughout bacterial species.

Indexed as

Gene Expression Regulation, BacterialGene Transfer, HorizontalBacterial ProteinsDNA, BacterialGene Expression ProfilingHumansLegionella pneumophilaLegionnaires' DiseaseModels, GeneticRegulonRNA, BacterialTransformation, BacterialBacterial ProteinsDNA, BacterialRNA, BacterialLegionella pneumophilanatural transformationnon-coding RNAProQ/FinORNA chaperone

Identifiers

PMID27432973
PMCPMC4978251

What OpenQuestion holds

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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.