Evidence map›Paper›PMID 21385715›Full record

ArticleScience (New York, N.Y.)2011

Three-dimensional model of Salmonella's needle complex at subnanometer resolution.

Oliver Schraidt, Thomas C Marlovits

Abstract read
PubMed Publisher
In one paragraph

Article in Science (New York, N.Y.), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 113 papers.

0numbers the graph read from it
0cells of the map it votes in
113citing 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

113 citing papers in PubMed.

  1. Article
  2. PreventingFrontiers in microbiology · 2026
    Article
  3. Article
  4. Targeting Type III Secretion System usingIndian journal of microbiology · 2025
    Review
  5. Review
  6. Review
  7. Review
  8. Blue Native PAGE Analysis of Bacterial Secretion Complexes.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Cryo-EM of the injectisome and type III secretion systems.Current opinion in structural biology · 2022
    Review
  15. Article
  16. Article
  17. Cryo-EM structure of the needle filament tip complex of theProceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  18. Helical reconstruction ofBiochemistry and biophysics reports · 2021
    Article
  19. Article
  20. Secrete or perish: The role of secretion systems inComputational and structural biotechnology journal · 2021
    Review

53 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Oliver SchraidtResearch Institute of Molecular Pathology, Dr. Bohr Gasse 7, A-1030 Vienna, Austria.
Thomas C Marlovits

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Type III secretion systems (T3SSs) are essential virulence factors used by many Gram-negative bacteria to inject proteins that make eukaryotic host cells accessible to invasion. The T3SS core structure, the needle complex (NC), is a ~3.5 megadalton-sized, oligomeric, membrane-embedded complex. Analyzing cryo-electron microscopy images of top views of NCs or NC substructures from Salmonella typhimurium revealed a 24-fold symmetry for the inner rings and a 15-fold symmetry for the outer rings, giving an overall C3 symmetry. Local refinement and averaging showed the organization of the central core and allowed us to reconstruct a subnanometer composite structure of the NC, which together with confident docking of atomic structures reveal insights into its overall organization and structural requirements during assembly.

Indexed as

Bacterial Secretion SystemsBacterial ProteinsCryoelectron MicroscopyCrystallography, X-RayImage Processing, Computer-AssistedMembrane ProteinsMembrane Transport ProteinsModels, MolecularMutationProtein ConformationProtein Structure, TertiarySalmonella typhimuriumBacterial ProteinsBacterial Secretion SystemsinvG protein, Salmonella typhimuriumMembrane ProteinsMembrane Transport ProteinsPrgH protein, Salmonella typhimuriumPrgK protein, Salmonella typhimurium

Identifiers

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.