Evidence map›Paper›PMID 30242280›Full record

ArticleNature communications2018

Cryo-EM analysis of the T3S injectisome reveals the structure of the needle and open secretin.

J Hu, L J Worrall, C Hong, M Vuckovic, C E Atkinson, N Caveney, Z Yu, N C J Strynadka

Abstract read
In one paragraph

Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing 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

62 citing papers in PubMed.

  1. Article
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  4. Anti-infective compounds forSustainable microbiology · 2026
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  6. Megaplasmids associate withbioRxiv : the preprint server for biology · 2025
    Article
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  8. Computational function prediction of bacteria and phage proteins.Microbiology and molecular biology reviews : MMBR · 2025
    Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Comparative Analysis of T4SS Molecular Architectures.Journal of microbiology and biotechnology · 2023
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Review

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

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

8 authors.

J HuDepartment of Biochemistry and Molecular Biology and the Centre for Blood Research, University of British Columbia, Vancouver, V6T 1Z3, BC, Canada.
L J WorrallDepartment of Biochemistry and Molecular Biology and the Centre for Blood Research, University of British Columbia, Vancouver, V6T 1Z3, BC, Canada.
C HongCryoEM Shared Resources, Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, 20147, VA, USA.
M VuckovicDepartment of Biochemistry and Molecular Biology and the Centre for Blood Research, University of British Columbia, Vancouver, V6T 1Z3, BC, Canada.
C E AtkinsonDepartment of Biochemistry and Molecular Biology and the Centre for Blood Research, University of British Columbia, Vancouver, V6T 1Z3, BC, Canada.
N CaveneyDepartment of Biochemistry and Molecular Biology and the Centre for Blood Research, University of British Columbia, Vancouver, V6T 1Z3, BC, Canada.
Z YuCryoEM Shared Resources, Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, 20147, VA, USA.
N C J StrynadkaDepartment of Biochemistry and Molecular Biology and the Centre for Blood Research, University of British Columbia, Vancouver, V6T 1Z3, BC, Canada. ncjs@mail.ubc.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The bacterial type III secretion system, or injectisome, is a syringe shaped nanomachine essential for the virulence of many disease causing Gram-negative bacteria. At the core of the injectisome structure is the needle complex, a continuous channel formed by the highly oligomerized inner and outer membrane hollow rings and a polymerized helical needle filament which spans through and projects into the infected host cell. Here we present the near-atomic resolution structure of a needle complex from the prototypical Salmonella Typhimurium SPI-1 type III secretion system, with local masking protocols allowing for model building and refinement of the major membrane spanning components of the needle complex base in addition to an isolated needle filament. This work provides significant insight into injectisome structure and assembly and importantly captures the molecular basis for substrate induced gating in the giant outer membrane secretin portal family.

Indexed as

Cryoelectron MicroscopySalmonellaType III Secretion SystemsType III Secretion Systems

Identifiers

PMID30242280
PMCPMC6155069

What OpenQuestion holds

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LicenceCC BY
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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.