Evidence map›Paper›PMID 32680451›Full record

ReviewAnnual review of microbiology2020

Polymorphic Toxins and Their Immunity Proteins: Diversity, Evolution, and Mechanisms of Delivery.

Zachary C Ruhe, David A Low, Christopher S Hayes

Abstract readReview
In one paragraph

Review in Annual review of microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing 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

85 citing papers in PubMed.

  1. Article
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  5. Review
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  13. mBio · 2026
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Advances in understanding Ton and Tol system motor proteins.Biochemical Society transactions · 2026
    Review
  20. Article

25 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

3 authors.

Zachary C RuheDepartment of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, California 93106, USA; email: chayes@lifesci.ucsb.edu.
David A LowDepartment of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, California 93106, USA; email: chayes@lifesci.ucsb.edu.
Christopher S HayesDepartment of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, California 93106, USA; email: chayes@lifesci.ucsb.edu.

Funding

Molecular Mechanisms of anti-bacterial contact-dependent growth inhibition (CDI)R01GM117930 · NIGMS · UNIVERSITY OF CALIFORNIA SANTA BARBARA · PI HAYES, CHRISTOPHER S. · 2016 to 2023
$3.0M
Molecular mechanisms of antibacterial CDI toxin activationR01GM117373 · NIGMS · UNIVERSITY OF CALIFORNIA SANTA BARBARA · PI GOULDING, CELIA, HAYES, CHRISTOPHER S. · 2016 to 2019
$1.2M
NIGMS NIH HHS R01 GM117373NIGMS NIH HHS R01 GM117930
6 · The paper itself

Abstract

All bacteria must compete for growth niches and other limited environmental resources. These existential battles are waged at several levels, but one common strategy entails the transfer of growth-inhibitory protein toxins between competing cells. These antibacterial effectors are invariably encoded with immunity proteins that protect cells from intoxication by neighboring siblings. Several effector classes have been described, each designed to breach the cell envelope of target bacteria. Although effector architectures and export pathways tend to be clade specific, phylogenetically distant species often deploy closely related toxin domains. Thus, diverse competition systems are linked through a common reservoir of toxin-immunity pairs that is shared via horizontal gene transfer. These toxin-immunity protein pairs are extraordinarily diverse in sequence, and this polymorphism underpins an important mechanism of self/nonself discrimination in bacteria. This review focuses on the structures, functions, and delivery mechanisms of polymorphic toxin effectors that mediate bacterial competition.

Indexed as

Gene Transfer, HorizontalMicrobial InteractionsBacteriaBacterial ProteinsBacterial ToxinsType VI Secretion SystemsBacterial ProteinsBacterial ToxinsType VI Secretion SystemsCDIcolicinscontact-dependent growth inhibitionESSEsx-like secretion systemMafBOMEouter membrane exchangeT6SStype VI secretion system

Identifiers

PMID32680451
PMCPMC8019152

What Socratic 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 Socratic graph.