Evidence map›Paper›PMID 19805029›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

CAPS drives trans-SNARE complex formation and membrane fusion through syntaxin interactions.

Declan J James, Judith Kowalchyk, Neil Daily, Matt Petrie, Thomas F J Martin

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

53 citing papers in PubMed, 68 citations in OpenAlex.

  1. Membrane Merger Dynamics in Exocytosis and Endocytosis.Advances in experimental medicine and biology · 2026
    Review
  2. PI(4,5)PBiochimica et biophysica acta. Molecular and cell biology of lipids · 2025
    Review
  3. CaAdvances in experimental medicine and biology · 2023
    Article
  4. Review
  5. Article
  6. Review
  7. CK2 Phosphorylation Is Required for Regulation of Syntaxin 1A Activity in CaInternational journal of molecular sciences · 2021
    Article
  8. Article
  9. Review
  10. CAPS1 Suppresses Tumorigenesis in Cholangiocarcinoma.Digestive diseases and sciences · 2020
    Article
  11. Phosphatidylinositol 4,5-bisphosphate in the Control of Membrane Trafficking.International journal of biological sciences · 2020
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. An Alternative Exon of CAPS2 Influences Catecholamine Loading into LDCVs of Chromaffin Cells.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  17. Article
  18. Article
  19. Review
  20. 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

5 authors at 2 institutions in 1 country.

Declan J JamesDepartment of Biochemistry, University of Wisconsin, Madison, WI 53706, USA.
Judith Kowalchyk
Neil Daily
Matt Petrie
Thomas F J Martin
University of Wisconsin–Madison · USDartmouth College · US

Funding

CA++ REGULATION OF SECRETION IN NEUROENDOCRINE CELLSR01DK040428 · NIDDK · UNIVERSITY OF WISCONSIN-MADISON · PI MARTIN, THOMAS F. J. · 1988 to 2015
$4.8M
NIDDK NIH HHS DK40428NIDDK NIH HHS R01 DK040428
6 · The paper itself

Abstract

Ca(2+)-dependent activator protein for secretion (CAPS) is an essential factor for regulated vesicle exocytosis that functions in priming reactions before Ca(2+)-triggered fusion of vesicles with the plasma membrane. However, the precise events that CAPS regulates to promote vesicle fusion are unclear. In the current work, we reconstituted CAPS function in a SNARE-dependent liposome fusion assay using VAMP2-containing donor and syntaxin-1/SNAP-25-containing acceptor liposomes. The CAPS stimulation of fusion required PI(4,5)P(2) in acceptor liposomes and was independent of Ca(2+), but Ca(2+) dependence was restored by inclusion of synaptotagmin. CAPS stimulated trans-SNARE complex formation concomitant with the stimulation of full membrane fusion at physiological SNARE densities. CAPS bound syntaxin-1, and CAPS truncations that competitively inhibited syntaxin-1 binding also inhibited CAPS-dependent fusion. The results revealed an unexpected activity of a priming protein to accelerate fusion by efficiently promoting trans-SNARE complex formation. CAPS may function in priming by organizing SNARE complexes on the plasma membrane.

Indexed as

AnimalsCell MembraneExocytosisHomeostasisLecithinsLiposomesMembrane FusionPC12 CellsPhosphatidylserinesQa-SNARE ProteinsRatsSNARE ProteinsSynaptosomal-Associated Protein 25SynaptotagminsSyntaxin 1Vesicle-Associated Membrane Protein 2LecithinsLiposomesPhosphatidylserinesQa-SNARE ProteinsSNARE ProteinsSynaptosomal-Associated Protein 25SynaptotagminsSyntaxin 1Vesicle-Associated Membrane Protein 2

Identifiers

PMID19805029
PMCPMC2765074
OpenAlexW2083214087

What OpenQuestion holds

Textmetadata
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.