Evidence map›Paper›PMID 10899113›Full record

ArticleThe EMBO journal2000

Munc13-1 acts as a priming factor for large dense-core vesicles in bovine chromaffin cells.

U Ashery, F Varoqueaux, T Voets, A Betz, P Thakur, H Koch, E Neher, N Brose, J Rettig

Abstract read
In one paragraph

Article in The EMBO journal, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers.

0numbers the graph read from it
0cells of the map it votes in
94citing 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

94 citing papers in PubMed.

  1. Article
  2. PI(4,5)PBiochimica et biophysica acta. Molecular and cell biology of lipids · 2025
    Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. The Phosphoprotein Synapsin Ia Regulates the Kinetics of Dense-Core Vesicle Release.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. How does the stimulus define exocytosis in adrenal chromaffin cells?Pflugers Archiv : European journal of physiology · 2018
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article

34 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

9 authors.

U AsheryMax-Planck-Institute for Biophysical Chemistry, Department of Membrane Biophysics, Am Fassberg 11, 37077 Göttingen, Germany.
F Varoqueaux
T Voets
A Betz
P Thakur
H Koch
E Neher
N Brose
J Rettig

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In chromaffin cells the number of large dense-core vesicles (LDCVs) which can be released by brief, intense stimuli represents only a small fraction of the 'morphologically docked' vesicles at the plasma membrane. Recently, it was shown that Munc13-1 is essential for a post-docking step of synaptic vesicle fusion. To investigate the role of Munc13-1 in LDCV exocytosis, we overexpressed Munc13-1 in chromaffin cells and stimulated secretion by flash photolysis of caged calcium. Both components of the exocytotic burst, which represent the fusion of release-competent vesicles, were increased by a factor of three. The sustained component, which represents vesicle maturation and subsequent fusion, was increased by the same factor. The response to a second flash, however, was greatly reduced, indicating a depletion of release-competent vesicles. Since there was no apparent change in the number of docked vesicles, we conclude that Munc13-1 acts as a priming factor by accelerating the rate constant of vesicle transfer from a pool of docked, but unprimed vesicles to a pool of release-competent, primed vesicles.

Indexed as

ExocytosisAnimalsBrainCalciumCatecholaminesCattleCells, CulturedChromaffin CellsComputer SimulationEgtazic AcidElectric ConductivityKineticsMembrane FusionMicroscopy, ElectronModels, BiologicalNerve Tissue Proteins2-nitrophenyl-EGTACalciumCatecholaminesEgtazic AcidNerve Tissue ProteinsProtein IsoformsUnc13a protein, rat

Identifiers

PMID10899113
PMCPMC313963

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.