Evidence map›Paper›PMID 9671651›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience1998

An essential role for a small synaptic vesicle-associated phosphatidylinositol 4-kinase in neurotransmitter release.

C Wiedemann, T Schäfer, M M Burger, T S Sihra

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing 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

25 citing papers in PubMed, 87 citations in OpenAlex.

  1. Lipids and Secretory Vesicle Exocytosis.Advances in neurobiology · 2023
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  10. Loss of phosphatidylinositol 4-kinase 2alpha activity causes late onset degeneration of spinal cord axons.Proceedings of the National Academy of Sciences of the United States of America · 2009
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  16. Phosphatidylinositol 4-kinase serves as a metabolic sensor and regulates priming of secretory granules in pancreatic beta cells.Proceedings of the National Academy of Sciences of the United States of America · 2003
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  17. Article
  18. Review
  19. Alterations in exocytosis induced by neuronal Ca2+ sensor-1 in bovine chromaffin cells.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2002
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  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

4 authors at 2 institutions in 2 countries.

C WiedemannFriedrich Miescher-Institute, 4002 Basel, Switzerland.
T Schäfer
M M Burger
T S Sihra
Friedrich Miescher Institute · CHThe Royal Free Hospital · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

Glutamate release from nerve terminals is the consequence of Ca2+-triggered fusion of small synaptic vesicles with the presynaptic plasma membrane. ATP dependence of neurotransmitter release has been suggested to be founded, in part, on phosphorylation steps preceding membrane fusion. Here we present evidence for an essential role of phosphatidylinositol phosphorylation in stimulated release of neurotransmitter glutamate from isolated nerve terminals (synaptosomes). Specifically, we show that a phosphatidylinositol 4-kinase (PtdIns 4-kinase) activity resides on nerve terminal-derived small synaptic vesicles (SSVs) and that inhibition of the PtdIns 4-kinase activity in intact synaptosomes leads to attenuation of the evoked release of glutamate. The attenuation of transmitter release is reversible and correlates with respective changes in intrasynaptosomal PtdIns 4-kinase activity. Because only the Ca2+-dependent release of glutamate is affected, regulation appears to be at the level of exocytosis. Taken together, our data imply a mandatory role for PtdIns 4-kinase and phosphoinositide products in the regulated exocytosis of SSV in mammalian nerve terminals.

Indexed as

1-Phosphatidylinositol 4-KinaseAnimalsExocytosisGlutamic AcidIn Vitro TechniquesPhosphorylationRatsSynaptic VesiclesSynaptosomes1-Phosphatidylinositol 4-KinaseGlutamic Acid

Identifiers

PMID9671651
PMCPMC6793044
OpenAlexW1660139288

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.