Evidence map›Paper›PMID 15758176›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2005

Structural domains involved in the regulation of transmitter release by synapsins.

Sabine Hilfiker, Fabio Benfenati, Frédéric Doussau, Angus C Nairn, Andrew J Czernik, George J Augustine, Paul Greengard

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

66 citing papers in PubMed, 141 citations in OpenAlex.

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6 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

7 authors at 2 institutions in 2 countries.

Sabine HilfikerLaboratory of Molecular and Cellular Neuroscience, The Rockefeller University, New York, New York 10021, USA. sabine.hilfiker@ipb.csic.es
Fabio Benfenati
Frédéric Doussau
Angus C Nairn
Andrew J Czernik
George J Augustine
Paul Greengard
Rockefeller University · USMarine Biological Laboratory · US

Funding

ROLE OF CALCIUM IONS IN PRESYNAPTIC FUNCTIONR01NS021624 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI AUGUSTINE, GEORGE J. · 1985 to 2009
$3.2M
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
NIMH NIH HHS MH39327NIMH NIH HHS R01 MH039327NIMH NIH HHS R37 MH039327NINDS NIH HHS NS-21624NINDS NIH HHS R01 NS021624
6 · The paper itself

Abstract

Synapsins are a family of neuron-specific phosphoproteins that regulate neurotransmitter release by associating with synaptic vesicles. Synapsins consist of a series of conserved and variable structural domains of unknown function. We performed a systematic structure-function analysis of the various domains of synapsin by assessing the actions of synapsin fragments on neurotransmitter release, presynaptic ultrastructure, and the biochemical interactions of synapsin. Injecting a peptide derived from domain A into the squid giant presynaptic terminal inhibited neurotransmitter release in a phosphorylation-dependent manner. This peptide had no effect on vesicle pool size, synaptic depression, or transmitter release kinetics. In contrast, a peptide fragment from domain C reduced the number of synaptic vesicles in the periphery of the active zone and increased the rate and extent of synaptic depression. This peptide also slowed the kinetics of neurotransmitter release without affecting the number of docked vesicles. The domain C peptide, as well as another peptide from domain E that is known to have identical effects on vesicle pool size and release kinetics, both specifically interfered with the binding of synapsins to actin but not with the binding of synapsins to synaptic vesicles. This suggests that both peptides interfere with release by preventing interactions of synapsins with actin. Thus, interactions of domains C and E with the actin cytoskeleton may allow synapsins to perform two roles in regulating release, whereas domain A has an actin-independent function that regulates transmitter release in a phosphorylation-sensitive manner.

Indexed as

Amino Acid SequenceAnimalsCattleExcitatory Postsynaptic PotentialsIn Vitro TechniquesLoligoMolecular Sequence DataNeurotransmitter AgentsPeptide FragmentsProtein Structure, TertiaryRatsStellate GanglionSynapsinsNeurotransmitter AgentsPeptide FragmentsSynapsins

Identifiers

PMID15758176
PMCPMC6725186
OpenAlexW2037680312

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.