Evidence map›Paper›PMID 28878270›Full record

ArticleScientific reports2017

Membrane association of the bacterial riboregulator Hfq and functional perspectives.

Antoine Malabirade, Javier Morgado-Brajones, Sylvain Trépout, Frank Wien, Ileana Marquez, Jérôme Seguin, Sergio Marco, Marisela Velez, Véronique Arluison

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
2.2field-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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.

  1. Drug-resistantClinical microbiology reviews · 2025
    Pooled it
  2. Article
  3. Article
  4. Review
  5. What makes a small RNA work?Nucleic acids research · 2025
    Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Interactions and Insertion ofInternational journal of molecular sciences · 2023
    Article
  14. Unraveling Membrane Perturbations Caused by the Bacterial Riboregulator Hfq.International journal of molecular sciences · 2022
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 7 institutions in 2 countries.

Antoine MalabiradeLaboratoire Léon Brillouin LLB, CEA, CNRS UMR12, Université Paris Saclay, CEA Saclay, 91191, Gif-sur-Yvette, France.
Javier Morgado-BrajonesLaboratoire Léon Brillouin LLB, CEA, CNRS UMR12, Université Paris Saclay, CEA Saclay, 91191, Gif-sur-Yvette, France.
Sylvain TrépoutInstitut Curie, Research Center, PSL Research University, Chemistry, Modelisation and Imaging for Biology (CMIB) Bât 110-112, Centre Universitaire, 91405, Orsay, France.
Frank WienDISCO Beamline, Synchrotron SOLEIL, 91192, Gif-sur-Yvette, France.
Ileana MarquezInstituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie, 2, Cantoblanco, E-28049, Madrid, Spain.
Jérôme SeguinInstitute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, Cedex, France.
Sergio MarcoInstitut Curie, Research Center, PSL Research University, Chemistry, Modelisation and Imaging for Biology (CMIB) Bât 110-112, Centre Universitaire, 91405, Orsay, France.
Marisela VelezInstituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie, 2, Cantoblanco, E-28049, Madrid, Spain.
Véronique ArluisonLaboratoire Léon Brillouin LLB, CEA, CNRS UMR12, Université Paris Saclay, CEA Saclay, 91191, Gif-sur-Yvette, France. veronique.arluison@univ-paris-diderot.fr.
Centre National de la Recherche Scientifique · FRInstituto de Catálisis y Petroleoquímica · ESCEA Paris-Saclay · FRCommissariat à l'Énergie Atomique et aux Énergies Alternatives · FRLaboratoire Léon Brillouin · FRSynchrotron soleil · FRUniversité Paris-Sud · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hfq is a bacterial RNA binding protein that carries out several roles in genetic expression regulation, mainly at the post-transcriptional level. Previous studies have shown its importance in growth and virulence of bacteria. Here, we provide the direct observation of its ability to interact with membranes. This was established by co-sedimentation assay, cryo-transmission electron (cryo-TEM) and atomic force (AFM) microscopies. Furthermore, our results suggest a role for its C-terminus amyloidogenic domain in membrane disruption. Precisely, AFM images of lipid bilayers in contact with Hfq C-terminus fibrils show the emergence of holes with a size dependent on the time of interaction. Cryo-TEM observations also show that liposomes are in contact with clusters of fibrils, with occasional deformation of the vesicles and afterward the apparition of a multitude of tiny vesicles in the proximity of the fibrils, suggesting peptide-induced breakage of the liposomes. Finally, circular dichroism spectroscopy demonstrated a change in the secondary structure of Hfq C-terminus upon interaction with liposomes. Altogether, these results show an unexpected property of Hfq and suggest a possible new role for the protein, exporting sRNA outside of the bacterial cell.

Identifiers

PMID28878270
PMCPMC5587644
OpenAlexW2753305767

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.