Evidence map›Paper›PMID 1967610›Full record

ArticleThe Journal of cell biology1990

Redistribution of synaptophysin and synapsin I during alpha-latrotoxin-induced release of neurotransmitter at the neuromuscular junction.

F Torri-Tarelli, A Villa, F Valtorta, P De Camilli, P Greengard, B Ceccarelli

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1990. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
5.7field-weighted citation impact, top 3% 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

22 citing papers in PubMed, 122 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. The role of synapsins in neuronal development.Cellular and molecular life sciences : CMLS · 2010
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Synapsins as regulators of neurotransmitter release.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 1999
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  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

6 authors at 1 institution in 1 country.

F Torri-TarelliDepartment of Medical Pharmacology, University of Milano, Italy.
A Villa
F Valtorta
P De Camilli
P Greengard
B Ceccarelli
University of Milan · IT

Funding

SYNAPSINS: REGULATORS OF NEUROTRANSMITTER RELEASER01MH039327 · NIMH · ROCKEFELLER UNIVERSITY · PI GREENGARD, PAUL · 1985 to 2006
$2.9M
SYNAPSINS: REGULATORS OF NEUROTRANSMITTER RELEASER37MH039327 · NIMH · ROCKEFELLER UNIVERSITY · PI GREENGARD, PAUL · 1991 to 2000
$671k
METABOLIC BASIS OF NEURAL FUNCTIONR01NS021550 · NINDS · ROCKEFELLER UNIVERSITY · PI GREENGARD, PAUL · 1985 to 1991
–
NIMH NIH HHS MH 39327NINDS NIH HHS NS 21550
6 · The paper itself

Abstract

The distribution of two synaptic vesicle-specific phosphoproteins, synaptophysin and synapsin I, during intense quantal secretion was studied by applying an immunogold labeling technique to ultrathin frozen sections. In nerve-muscle preparations treated for 1 h with a low dose of alpha-latrotoxin in the absence of extracellular Ca2+ (a condition under which nerve terminals are depleted of both quanta of neurotransmitter and synaptic vesicles), the immunolabeling for both proteins was distributed along the axolemma. These findings indicate that, in the presence of a block of endocytosis, exocytosis leads to the permanent incorporation of the synaptic vesicle membrane into the axolemma and suggest that, under this condition, at least some of the synapsin I molecules remain associated with the vesicle membrane after fusion. When the same dose of alpha-latrotoxin was applied in the presence of extracellular Ca2+, the immunoreactivity patterns resembled those obtained in resting preparations: immunogold particles were selectively associated with the membrane of synaptic vesicles, whereas the axolemma was virtually unlabeled. Under this condition an active recycling of both quanta of neurotransmitter and vesicles operates. These findings indicate that the retrieval of components of the synaptic vesicle membrane is an efficient process that does not involve extensive intermixing between molecular components of the vesicle and plasma membrane, and show that synaptic vesicles that are rapidly recycling still have the bulk of synapsin I associated with their membrane.

Indexed as

AnimalsArthropod VenomsExocytosisImmunohistochemistryMembrane ProteinsMicroscopy, ElectronNerve Tissue ProteinsNeuromuscular JunctionNeurotransmitter AgentsRana pipiensSpider VenomsSynapsesSynapsinsSynaptophysinalpha-latrotoxinArthropod VenomsMembrane ProteinsNerve Tissue ProteinsNeurotransmitter AgentsSpider VenomsSynapsinsSynaptophysin

Identifiers

PMID1967610
PMCPMC2116013
OpenAlexW2139018229

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.