Evidence map›Paper›PMID 24389247›Full record

ReviewBiochimica et biophysica acta2014

Mechanism and structure of the bacterial type IV secretion systems.

Peter J Christie, Neal Whitaker, Christian González-Rivera

Open access · greenAbstract readReview
In one paragraph

Review in Biochimica et biophysica acta, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 170 papers.

0numbers the graph read from it
0cells of the map it votes in
170citing papers in PubMed
21.7field-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

170 citing papers in PubMed, 271 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Type IV Secretion System Drives Lipid Mixing.bioRxiv : the preprint server for biology · 2026
    Article
  6. Review
  7. Article
  8. Article
  9. The Integrative and Conjugative Element ICEThe Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2026
    Article
  10. Structural and functional insights into Pseudomonas aeruginosa's secretion systems 1-6: regulation, role in microbial keratitis and drug targets.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026
    Review
  11. The R plasmid pRAS2 in the fish pathogenFrontiers in microbiology · 2026
    Article
  12. Article
  13. In situ structures of theProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  14. Review
  15. Article
  16. OptimizedMicrobiology spectrum · 2025
    Article
  17. Genomic and phenotypic insights into Serratia interaction with plants from an ecological perspective.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2025
    Article
  18. The type IV secretion system ofMicrobial genomics · 2025
    Article
  19. Article
  20. Article

110 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 at 1 institution in 1 country.

Peter J ChristieDepartment of Microbiology and Molecular Genetics, UT-Houston Medical School, 6431 Fannin, JFB1.765, Houston, TX 77030, USA. Electronic address: Peter.J.Christie@uth.tmc.edu.
Neal WhitakerDepartment of Microbiology and Molecular Genetics, UT-Houston Medical School, 6431 Fannin, JFB1.765, Houston, TX 77030, USA.
Christian González-RiveraDepartment of Microbiology and Molecular Genetics, UT-Houston Medical School, 6431 Fannin, JFB1.765, Houston, TX 77030, USA.
The University of Texas Health Science Center at Houston · US

Funding

Resource for Biocomputing Visualization and InformaticsP41GM103311 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI FERRIN, THOMAS E · 2012 to 2017
$8.2M
TRANSLOCATION OF DNA ACROSS THE AGROBACTERIUM ENVELOPER01GM048746 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI CHRISTIE, PETER J. · 1998 to 2018
$6.9M
Role of type IV secretion-mediated protein translocation in E. faecalisR21AI105454 · NIAID · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI CHRISTIE, PETER J. · 2013 to 2014
$431k
NIAID NIH HHS 1R21AI105454NIAID NIH HHS R21 AI105454NIGMS NIH HHS P41 GM103311NIGMS NIH HHS P41-GM103311NIGMS NIH HHS R01 GM048746NIGMS NIH HHS R01GM48746
6 · The paper itself

Abstract

The bacterial type IV secretion systems (T4SSs) translocate DNA and protein substrates to bacterial or eukaryotic target cells generally by a mechanism dependent on direct cell-to-cell contact. The T4SSs encompass two large subfamilies, the conjugation systems and the effector translocators. The conjugation systems mediate interbacterial DNA transfer and are responsible for the rapid dissemination of antibiotic resistance genes and virulence determinants in clinical settings. The effector translocators are used by many Gram-negative bacterial pathogens for delivery of potentially hundreds of virulence proteins to eukaryotic cells for modulation of different physiological processes during infection. Recently, there has been considerable progress in defining the structures of T4SS machine subunits and large machine subassemblies. Additionally, the nature of substrate translocation sequences and the contributions of accessory proteins to substrate docking with the translocation channel have been elucidated. A DNA translocation route through the Agrobacterium tumefaciens VirB/VirD4 system was defined, and both intracellular (DNA ligand, ATP energy) and extracellular (phage binding) signals were shown to activate type IV-dependent translocation. Finally, phylogenetic studies have shed light on the evolution and distribution of T4SSs, and complementary structure-function studies of diverse systems have identified adaptations tailored for novel functions in pathogenic settings. This review summarizes the recent progress in our understanding of the architecture and mechanism of action of these fascinating machines, with emphasis on the 'archetypal' A. tumefaciens VirB/VirD4 T4SS and related conjugation systems. This article is part of a Special Issue entitled: Protein trafficking and secretion in bacteria. Guest Editors: Anastassios Economou and Ross Dalbey.

Indexed as

Adenosine TriphosphatasesAgrobacterium tumefaciensBacterial Secretion SystemsDNAFimbriae, BacterialGram-Negative BacteriaPeriplasmic ProteinsProtein BindingProtein FoldingProtein TransportAdenosine TriphosphatasesBacterial Secretion SystemsDNAPeriplasmic ProteinsConjugationDNA transferPathogenesisPilusProtein translocationTraffic ATPase

Identifiers

PMID24389247
PMCPMC4061277
OpenAlexW2036467696

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.