Evidence map›Paper›PMID 22607806›Full record

ArticleCell host & microbe2012

A widespread bacterial type VI secretion effector superfamily identified using a heuristic approach.

Alistair B Russell, Pragya Singh, Mitchell Brittnacher, Nhat Khai Bui, Rachel D Hood, Mike A Carl, Danielle M Agnello, Sandra Schwarz, David R Goodlett, Waldemar Vollmer and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Cell host & microbe, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 190 papers.

0numbers the graph read from it
0cells of the map it votes in
190citing papers in PubMed
19.5field-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

190 citing papers in PubMed, 307 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Type VI Secretion Systems inMicroorganisms · 2026
    Article
  5. Article
  6. Review
  7. Article
  8. The SPI-20 and SPI-21 T6SS gene clusters fromFrontiers in microbiology · 2026
    Article
  9. Article
  10. The SPI-6 T6SS gene cluster fromFrontiers in microbiology · 2026
    Article
  11. Article
  12. A nonenzymatic effector disruptsProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Deciphering theJournal of bacteriology · 2025
    Review
  18. Article
  19. Article
  20. Article

130 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 2 institutions in 2 countries.

Alistair B RussellDepartment of Microbiology, University of Washington, Seattle, WA 98195, USA.
Pragya Singh
Mitchell Brittnacher
Nhat Khai Bui
Rachel D Hood
Mike A Carl
Danielle M Agnello
Sandra Schwarz
David R Goodlett
Waldemar Vollmer
Joseph D Mougous
University of Washington · USNewcastle University · GB

Funding

Variation in Human Innate ImmunityU54AI057141 · NIAID · UNIVERSITY OF WASHINGTON · PI WURFEL, MARTIN M. · 2003 to 2013
$102.3M
Type VI secretion effectors and interbacterial competition in vivoR01AI080609 · NIAID · YALE UNIVERSITY · PI MOUGOUS, JOSEPH DAVID · 2009 to 2025
$6.7M
NIAID NIH HHS AI057141NIAID NIH HHS AI080609NIAID NIH HHS R01 AI080609NIAID NIH HHS U54 AI057141
6 · The paper itself

Abstract

Sophisticated mechanisms are employed to facilitate information exchange between interfacing bacteria. A type VI secretion system (T6SS) of Pseudomonas aeruginosa was shown to deliver cell wall-targeting effectors to neighboring cells. However, the generality of bacteriolytic effectors and, moreover, of antibacterial T6S remained unknown. Using parameters derived from experimentally validated bacterial T6SS effectors we identified a phylogenetically disperse superfamily of T6SS-associated peptidoglycan-degrading effectors. The effectors separate into four families composed of peptidoglycan amidase enzymes of differing specificities. Effectors strictly co-occur with cognate immunity proteins, indicating that self-intoxication is a general property of antibacterial T6SSs and effector delivery by the system exerts a strong selective pressure in nature. The presence of antibacterial effectors in a plethora of organisms, including many that inhabit or infect polymicrobial niches in the human body, suggests that the system could mediate interbacterial interactions of both environmental and clinical significance.

Indexed as

AmidohydrolasesAntibiosisBacteriaBacterial Physiological PhenomenaBacterial Secretion SystemsPeptidoglycanamidaseAmidohydrolasesBacterial Secretion SystemsPeptidoglycan

Identifiers

PMID22607806
PMCPMC3358704
OpenAlexW2041309451

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.