Evidence map›Paper›PMID 23936096›Full record

ArticlePloS one2013

Two coiled-coil domains of Chlamydia trachomatis IncA affect membrane fusion events during infection.

Erik Ronzone, Fabienne Paumet

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.3field-weighted citation impact, top 9% 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

28 citing papers in PubMed, 48 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Recognition ofInfection and immunity · 2024
    Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. The multiple functions of the numerousMicrobial cell (Graz, Austria) · 2019
    Review
  14. Article
  15. Article
  16. Review
  17. Chlamydial Infection From Outside to Inside.Frontiers in microbiology · 2019
    Review
  18. Review
  19. A Co-infection Model System and the Use of Chimeric Proteins to StudyFrontiers in cellular and infection microbiology · 2017
    Article
  20. Development of a Proximity Labeling System to Map theFrontiers in cellular and infection microbiology · 2017
    Article
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

2 authors at 1 institution in 1 country.

Erik RonzoneDepartment of Microbiology and Immunology, Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America.
Fabienne Paumet
Thomas Jefferson University · US

Funding

X-Ray Crystallography and Macromolecular CharacterizationP30CA056036 · NCI · THOMAS JEFFERSON UNIVERSITY · PI DANIEL P SILVER · 1995 to 2026
$94.8M
How bacteria corrupt the host vesicular trafficking:Role of SNARE-like ProteinsR01AI073486 · NIAID · THOMAS JEFFERSON UNIVERSITY · PI PAUMET, FABIENNE MICHELLE · 2009 to 2012
$1.4M
NCI NIH HHS P30 CA056036NCI NIH HHS P30 CA56036NIAID NIH HHS R01 AI073486NIAID NIH HHS R01-AI073486
6 · The paper itself

Abstract

Chlamydia trachomatis replicates in a parasitophorous membrane-bound compartment called an inclusion. The inclusions corrupt host vesicle trafficking networks to avoid the degradative endolysosomal pathway but promote fusion with each other in order to sustain higher bacterial loads in a process known as homotypic fusion. The Chlamydia protein IncA (Inclusion protein A) appears to play central roles in both these processes as it participates to homotypic fusion and inhibits endocytic SNARE-mediated membrane fusion. How IncA selectively inhibits or activates membrane fusion remains poorly understood. In this study, we analyzed the spatial and molecular determinants of IncA's fusogenic and inhibitory functions. Using a cell-free membrane fusion assay, we found that inhibition of SNARE-mediated fusion requires IncA to be on the same membrane as the endocytic SNARE proteins. IncA displays two coiled-coil domains showing high homology with SNARE proteins. Domain swap and deletion experiments revealed that although both these domains are capable of independently inhibiting SNARE-mediated fusion, these two coiled-coil domains cooperate in mediating IncA multimerization and homotypic membrane interaction. Our results support the hypothesis that Chlamydia employs SNARE-like virulence factors that positively and negatively affect membrane fusion and promote infection.

Indexed as

Membrane FusionBacterial ProteinsChlamydia InfectionsChlamydia trachomatisEndocytosisHeLa CellsHumansLiposomesMembrane ProteinsProtein MultimerizationProtein Structure, TertiarySNARE ProteinsStructure-Activity RelationshipBacterial ProteinsIncA protein, Chlamydia trachomatisLiposomesMembrane ProteinsSNARE Proteins

Identifiers

PMID23936096
PMCPMC3720611
OpenAlexW1989159512

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.