Evidence map›Paper›PMID 31056419›Full record

ArticleStructure (London, England : 1993)2019

Structure and Assembly of the Enterohemorrhagic Escherichia coli Type 4 Pilus.

Benjamin Bardiaux, Gisele Cardoso de Amorim, Areli Luna Rico, Weili Zheng, Ingrid Guilvout, Camille Jollivet, Michael Nilges, Edward H Egelman, Nadia Izadi-Pruneyre, Olivera Francetic

Open access · bronzeAbstract read
In one paragraph

Article in Structure (London, England : 1993), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

21 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Integrative Structure and Function of thebioRxiv : the preprint server for biology · 2025
    Article
  3. Type IV pili ofEcoSal Plus · 2024
    Review
  4. Article
  5. Tight-packing of large pilin subunits provides distinct structural and mechanical properties for theProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Review
  17. Article
  18. Structure and function of minor pilins of type IV pili.Medical microbiology and immunology · 2020
    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

10 authors at 5 institutions in 2 countries.

Benjamin BardiauxStructural Bioinformatics Unit, Department of Structural Biology and Chemistry, C3BI, Institut Pasteur, CNRS UMR3528, CNRS USR3756, Paris, France.
Gisele Cardoso de AmorimNMR of Biomolecules Unit, Department of Structural Biology and Chemistry, Institut Pasteur, CNRS UMR3528, Paris, France.
Areli Luna RicoNMR of Biomolecules Unit, Department of Structural Biology and Chemistry, Institut Pasteur, CNRS UMR3528, Paris, France; Biochemistry of Macromolecular Interactions Unit, Department of Structural Biology and Chemistry, Institut Pasteur, CNRS UMR3528, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Paris, France.
Weili ZhengDepartment of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA 22908, USA.
Ingrid GuilvoutBiochemistry of Macromolecular Interactions Unit, Department of Structural Biology and Chemistry, Institut Pasteur, CNRS UMR3528, Paris, France.
Camille JollivetBiochemistry of Macromolecular Interactions Unit, Department of Structural Biology and Chemistry, Institut Pasteur, CNRS UMR3528, Paris, France.
Michael NilgesStructural Bioinformatics Unit, Department of Structural Biology and Chemistry, C3BI, Institut Pasteur, CNRS UMR3528, CNRS USR3756, Paris, France.
Edward H EgelmanDepartment of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA 22908, USA.
Nadia Izadi-PruneyreStructural Bioinformatics Unit, Department of Structural Biology and Chemistry, C3BI, Institut Pasteur, CNRS UMR3528, CNRS USR3756, Paris, France; NMR of Biomolecules Unit, Department of Structural Biology and Chemistry, Institut Pasteur, CNRS UMR3528, Paris, France. Electronic address: nadia.izadi@pasteur.fr.
Olivera FranceticBiochemistry of Macromolecular Interactions Unit, Department of Structural Biology and Chemistry, Institut Pasteur, CNRS UMR3528, Paris, France. Electronic address: olivera.francetic@pasteur.fr.
Centre National de la Recherche Scientifique · FRUniversity of Virginia · USDélégation Paris 7 · FRInstitut Pasteur · FRLaboratoire des Biomolécules · FR

Funding

Cryo-EM of Helical Protein and Nucleoprotein Polymers at Near Atomic ResolutionR35GM122510 · NIGMS · UNIVERSITY OF VIRGINIA · PI EDWARD H. EGELMAN · 2017 to 2026
$7.3M
NIGMS NIH HHS R35 GM122510
6 · The paper itself

Abstract

Bacterial type 4a pili are dynamic surface filaments that promote bacterial adherence, motility, and macromolecular transport. Their genes are highly conserved among enterobacteria and their expression in enterohemorrhagic Escherichia coli (EHEC) promotes adhesion to intestinal epithelia and pro-inflammatory signaling. To define the molecular basis of EHEC pilus assembly, we determined the structure of the periplasmic domain of its major subunit PpdD (PpdDp), a prototype of an enterobacterial pilin subfamily containing two disulfide bonds. The structure of PpdDp, determined by NMR, was then docked into the density envelope of purified EHEC pili obtained by cryoelectron microscopy (cryo-EM). Cryo-EM reconstruction of EHEC pili at ∼8 Å resolution revealed extremely high pilus flexibility correlating with a large extended region of the pilin stem. Systematic mutagenesis combined with functional and interaction analyses identified charged residues essential for pilus assembly. Structural information on exposed regions and interfaces between EHEC pilins is relevant for vaccine and drug discovery.

Indexed as

Amino Acid SequenceBinding SitesCloning, MolecularCryoelectron MicroscopyEnterohemorrhagic Escherichia coliEscherichia coliEscherichia coli ProteinsFimbriae, BacterialFimbriae ProteinsGene ExpressionGenetic VectorsKineticsMolecular Docking SimulationMutationNuclear Magnetic Resonance, BiomolecularProtein BindingEscherichia coli ProteinsFimbriae ProteinsPpdD protein, E coliRecombinant Proteinscryo-EMEHECEscherichia colihemorrhagic coli pilus (HCP)molecular modelingNMRpilin structurepilus assemblytype 4 pilitype II secretion system

Identifiers

PMID31056419
PMCPMC7003672
OpenAlexW2942826440

What OpenQuestion holds

Textmetadata
LicenceTDM
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.