Evidence map›Paper›PMID 11997474›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

Dynamin-dependent and dynamin-independent processes contribute to the regulation of single vesicle release kinetics and quantal size.

Margaret E Graham, Dermott W O'Callaghan, Harvey T McMahon, Robert D Burgoyne

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
4.3field-weighted citation impact, top 6% 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

80 citing papers in PubMed, 148 citations in OpenAlex.

  1. Membrane Merger Dynamics in Exocytosis and Endocytosis.Advances in experimental medicine and biology · 2026
    Review
  2. Article
  3. Review
  4. Article
  5. High-speed imaging reveals the bimodal nature of dense core vesicle exocytosis.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. How does the stimulus define exocytosis in adrenal chromaffin cells?Pflugers Archiv : European journal of physiology · 2018
    Review
  15. Old and emerging concepts on adrenal chromaffin cell stimulus-secretion coupling.Pflugers Archiv : European journal of physiology · 2018
    Article
  16. Chemistry in a vesicle.The Journal of general physiology · 2017
    Article
  17. Review
  18. Review
  19. Article
  20. Article

20 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

4 authors at 3 institutions in 1 country.

Margaret E GrahamPhysiological Laboratory, University of Liverpool, Crown Street, Liverpool L69 3BX, United Kingdom.
Dermott W O'Callaghan
Harvey T McMahon
Robert D Burgoyne
MRC Laboratory of Molecular Biology · GBMedical Research Council · GBUniversity of Liverpool · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Accumulating evidence suggests that the kinetics of release from single secretory vesicles can be regulated and that quantal size can be modified during fast kiss-and-run fusion. Multiple pathways for vesicle retrieval have been identified involving clathrin and dynamin. It has been unclear whether dynamin could participate in a fast kiss-and-run process to reclose a transient fusion pore and thereby limit vesicle release. We have disrupted dynamin function in adrenal chromaffin cells by expression of the amphiphysin Src-homology domain 3 (SH3) or by application of guanosine 5'-[gamma-thio]triphosphate (GTP gamma S), and have monitored single vesicle release events, evoked by digitonin and Ca(2+), by using carbon-fiber amperometry. Under both conditions, there was an increase in mean quantal size accompanying an increase in the half-width of amperometric spikes and a slowing of the fall time. These data suggest the existence of a dynamin-dependent process that can terminate vesicle release under basal conditions. Protein kinase C activation changed release kinetics and decreased quantal size by shortening the release period. The effects of phorbol ester treatment were not prevented by expression of the amphiphysin SH3 domain or by GTP gamma S suggesting the existence of alternative dynamin-independent process underlying fast kiss-and-run exocytosis.

Indexed as

AnimalsCattleChromaffin CellsDynaminsEndocytosisEnzyme ActivationGTP PhosphohydrolasesGuanosine 5'-O-(3-Thiotriphosphate)KineticsNerve Tissue ProteinsProtein Kinase Csrc Homology DomainsTetradecanoylphorbol AcetateamphiphysinDynaminsGTP PhosphohydrolasesGuanosine 5'-O-(3-Thiotriphosphate)Nerve Tissue ProteinsProtein Kinase CTetradecanoylphorbol Acetate

Identifiers

PMID11997474
PMCPMC124539
OpenAlexW2003380714

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.