Evidence map›Paper›PMID 32094588›Full record

ArticleNature microbiology2020

Envelope stress responses defend against type six secretion system attacks independently of immunity proteins.

Steven J Hersch, Nobuhiko Watanabe, Maria Silvina Stietz, Kevin Manera, Fatima Kamal, Brianne Burkinshaw, Linh Lam, Alexander Pun, Meixin Li, Alexei Savchenko and 1 more

Open access · greenAbstract read
In one paragraph

Article in Nature microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
16.7field-weighted citation impact, top 1% 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

81 citing papers in PubMed, 139 citations in OpenAlex.

  1. Article
  2. Oral Actinobacteria sense and defend against parasitic epibionts.bioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Dissecting the antibacterial functions of the T6SS-2 cluster inApplied and environmental microbiology · 2025
    Article
  10. Article
  11. Article
  12. Article
  13. Exploring Mobile Genetic Elements in Vibrio cholerae.Genome biology and evolution · 2025
    Article
  14. Article
  15. Article
  16. Article
  17. Multiplicity of type 6 secretion system toxins limits the evolution of resistance.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  18. Article
  19. Review
  20. Article

21 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

11 authors at 1 institution in 2 countries.

Steven J HerschDepartment of Ecosystem and Public Health, University of Calgary, Calgary, Canada.ORCID http://orcid.org/0000-0001-6186-0133
Nobuhiko WatanabeDepartment of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Canada.
Maria Silvina StietzDepartment of Ecosystem and Public Health, University of Calgary, Calgary, Canada.
Kevin ManeraDepartment of Ecosystem and Public Health, University of Calgary, Calgary, Canada.
Fatima KamalDepartment of Ecosystem and Public Health, University of Calgary, Calgary, Canada.
Brianne BurkinshawDepartment of Ecosystem and Public Health, University of Calgary, Calgary, Canada.
Linh LamDepartment of Ecosystem and Public Health, University of Calgary, Calgary, Canada.
Alexander PunDepartment of Ecosystem and Public Health, University of Calgary, Calgary, Canada.
Meixin LiDepartment of Ecosystem and Public Health, University of Calgary, Calgary, Canada.
Alexei SavchenkoDepartment of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Canada.
Tao G DongDepartment of Ecosystem and Public Health, University of Calgary, Calgary, Canada. tdong@ucalgary.ca.ORCID http://orcid.org/0000-0003-3557-1850
University of Calgary · CA

Funding

CIHRNIAID NIH HHS HHSN272201200026CNIAID NIH HHS HHSN272201700060C
6 · The paper itself

Abstract

The arms race among microorganisms is a key driver in the evolution of not only the weapons but also defence mechanisms. Many Gram-negative bacteria use the type six secretion system (T6SS) to deliver toxic effectors directly into neighbouring cells. Defence against effectors requires cognate immunity proteins. However, here we show immunity-independent protection mediated by envelope stress responses in Escherichia coli and Vibrio cholerae against a V. cholerae T6SS effector, TseH. We demonstrate that TseH is a PAAR-dependent species-specific effector highly potent against Aeromonas species but not against its V. cholerae immunity mutant or E. coli. A structural analysis reveals TseH is probably a NlpC/P60-family cysteine endopeptidase. We determine that two envelope stress-response pathways, Rcs and BaeSR, protect E. coli from TseH toxicity by mechanisms including capsule synthesis. The two-component system WigKR (VxrAB) is critical for protecting V. cholerae from its own T6SS despite expressing immunity genes. WigR also regulates T6SS expression, suggesting a dual role in attack and defence. This deepens our understanding of how bacteria survive T6SS attacks and suggests that defence against the T6SS represents a major selective pressure driving the evolution of species-specific effectors and protective mechanisms mediated by envelope stress responses and capsule synthesis.

Indexed as

ImmunityBacterial ProteinsEscherichia coliGene Expression Regulation, BacterialModels, MolecularProtein ConformationType VI Secretion SystemsVibrio choleraeVirulenceBacterial ProteinsType VI Secretion Systems

Identifiers

PMID32094588
PMCPMC7190449
OpenAlexW3008894341

What OpenQuestion holds

Textmetadata
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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.