Evidence map›Paper›PMID 30346996›Full record

ArticlePLoS pathogens2018

Structure-guided disruption of the pseudopilus tip complex inhibits the Type II secretion in Pseudomonas aeruginosa.

Yichen Zhang, Frédérick Faucher, Wenwen Zhang, Shu Wang, Nolan Neville, Keith Poole, Jun Zheng, Zongchao Jia

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

16 citing papers in PubMed, 27 citations in OpenAlex.

  1. β-strand addition within tip initiation complexes licenses assembly of diverse type IV filaments.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  11. Secrete or perish: The role of secretion systems inComputational and structural biotechnology journal · 2021
    Review
  12. Bacterial secretins: Mechanisms of assembly and membrane targeting.Protein science : a publication of the Protein Society · 2020
    Review
  13. Article
  14. Article
  15. Review
  16. Review
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 at 3 institutions in 3 countries.

Yichen ZhangDepartment of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada.
Frédérick FaucherDepartment of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada.
Wenwen ZhangFaculty of Health Sciences, University of Macau, Macau, China.
Shu WangCollege of Chemistry, Beijing Normal University, Beijing, China.
Nolan NevilleDepartment of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada.ORCID 0000-0003-2772-8117
Keith PooleDepartment of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada.
Jun ZhengFaculty of Health Sciences, University of Macau, Macau, China.
Zongchao JiaDepartment of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada.ORCID 0000-0002-9322-9394
Queen's University · CAUniversity of Macau · MOBeijing Normal University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pseudomonas aeruginosa utilizes the Type II secretion system (T2SS) to translocate a wide range of large, structured protein virulence factors through the periplasm to the extracellular environment for infection. In the T2SS, five pseudopilins assemble into the pseudopilus that acts as a piston to extrude exoproteins out of cells. Through structure determination of the pseudopilin complexes of XcpVWX and XcpVW and function analysis, we have confirmed that two minor pseudopilins, XcpV and XcpW, constitute a core complex indispensable to the pseudopilus tip. The absence of either XcpV or -W resulted in the non-functional T2SS. Our small-angle X-ray scattering experiment for the first time revealed the architecture of the entire pseudopilus tip and established the working model. Based on the interaction interface of complexes, we have developed inhibitory peptides. The structure-based peptides not only disrupted of the XcpVW core complex and the entire pseudopilus tip in vitro but also inhibited the T2SS in vivo. More importantly, these peptides effectively reduced the virulence of P. aeruginosa towards Caenorhabditis elegans.

Indexed as

AnimalsBacterial ProteinsCaenorhabditis elegansCrystallography, X-RayFimbriae, BacterialMembrane ProteinsModels, MolecularProtein ConformationPseudomonas aeruginosaPseudomonas InfectionsType II Secretion SystemsVirulenceBacterial ProteinsMembrane ProteinsType II Secretion SystemsXcpV protein, Pseudomonas aeruginosaXcpW protein, Pseudomonas aeruginosa

Identifiers

PMID30346996
PMCPMC6211770
OpenAlexW2898013629

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.