Evidence map›Paper›PMID 10369670›Full record

ArticleThe EMBO journal1999

Early requirement for alpha-SNAP and NSF in the secretory cascade in chromaffin cells.

T Xu, U Ashery, R D Burgoyne, E Neher

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
3.9field-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

39 citing papers in PubMed, 98 citations in OpenAlex.

  1. Article
  2. Review
  3. α-Synuclein is required for sperm exocytosis at a post-fusion stage.Frontiers in cell and developmental biology · 2023
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  8. Neuropeptide Y and somatostatin inhibit insulin secretion through different mechanisms.American journal of physiology. Endocrinology and metabolism · 2013
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  9. Article
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  13. Article
  14. Article
  15. Article
  16. DOC2B acts as a calcium switch and enhances vesicle fusion.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2008
    Article
  17. Ca-dependent nonsecretory vesicle fusion in a secretory cell.The Journal of general physiology · 2008
    Article
  18. Article
  19. Photolysis of a caged peptide reveals rapid action of N-ethylmaleimide sensitive factor before neurotransmitter release.Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
  20. Somatodendritic release of glutamate regulates synaptic inhibition in cerebellar Purkinje cells via autocrine mGluR1 activation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2007
    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

4 authors at 1 institution in 1 country.

T XuDepartment of Membrane Biophysics, Max-Planck-Institute for Biophysical Chemistry, Am Fassberg 11, D-37077, Göttingen, Germany.
U Ashery
R D Burgoyne
E Neher
Max Planck Institute for Biophysical Chemistry · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

NSF and alpha-SNAP have been shown to be required for SNARE complex disassembly and exocytosis. However, the exact requirement for NSF and alpha-SNAP in vesicular traffic through the secretory pathway remains controversial. We performed a study on the kinetics of exocytosis from bovine chromaffin cells using high time resolution capacitance measurement and electrochemical amperometry, combined with flash photolysis of caged Ca2+ as a fast stimulus. alpha-SNAP, a C-terminal mutant of alpha-SNAP, and NEM were assayed for their effects on secretion kinetics. Two kinetically distinct components of catecholamine release can be observed upon fast step-like elevation of [Ca2+]i. One is the exocytotic burst, thought to represent the readily releasable pool of vesicles. Following the exocytotic burst, secretion proceeds slowly at maintained high [Ca2+]i, which may represent vesicle maturation/recruitment, i.e. some priming steps after docking. alpha-SNAP increased the amplitude of both the exocytotic burst and the slow component but did not change their kinetics, which we examined with millisecond time resolution. In addition, NEM only partially inhibited the slow component without altering the exocytotic burst, fusion kinetics and the rate of endocytosis. These results suggest a role for alpha-SNAP/NSF in priming granules for release at an early step, but not modifying the fusion of readily releasable granules.

Indexed as

ExocytosisVesicular Transport ProteinsAdenosine TriphosphateAdrenal GlandsAnimalsCalciumCarrier ProteinsCatecholaminesCattleCells, CulturedChromaffin CellsChromaffin GranulesDialysisEgtazic AcidElectric ConductivityEndocytosis2-nitrophenyl-EGTAadenosine 5'-O-(3-thiotriphosphate)Adenosine TriphosphateCalciumCarrier ProteinsCatecholaminesEgtazic AcidEthylmaleimideMembrane ProteinsN-Ethylmaleimide-Sensitive ProteinsSoluble N-Ethylmaleimide-Sensitive Factor Attachment ProteinsVesicular Transport Proteins

Identifiers

PMID10369670
PMCPMC1171410
OpenAlexW2059967021

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.