Evidence map›Paper›PMID 19321783›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2009

Synaptic vesicle recycling at CNS snapses without AP-2.

Sung Hyun Kim, Timothy A Ryan

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
4.7field-weighted citation impact, top 5% 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

81 citing papers in PubMed, 125 citations in OpenAlex.

  1. Article
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  8. Article
  9. Adaptor protein-3 produces synaptic vesicles that release phasic dopamine.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  10. Article
  11. GABAeLife · 2023
    Article
  12. Article
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  14. Review
  15. Article
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  18. Article
  19. The Synaptic Vesicle Cycle Revisited: New Insights into the Modes and Mechanisms.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Review
  20. Article

21 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

2 authors at 1 institution in 1 country.

Sung Hyun KimDepartment of Biochemistry, Weill Cornell Medical College, New York, New York 10065, USA.
Timothy A Ryan
Cornell University · US

Funding

Physiology of Single Synaptic CNS TerminalsR01NS036942 · NINDS · WEILL MEDICAL COLL OF CORNELL UNIV · PI Timothy Aidan Ryan · 1998 to 2026
$6.8M
NINDS NIH HHS R01 NS036942
6 · The paper itself

Abstract

Synaptic vesicles (SVs) are composed of approximately 10 types of transmembrane proteins that must be recycled after exocytosis of neurotransmitter. The mechanisms for resorting these proteins into synaptic vesicles once incorporated into the plasma membrane after exocytosis are poorly understood. The adaptor complex AP-2 is the major clathrin-associated adaptor for cargo recognition at the plasma membrane. Here, we have investigated its role in synaptic vesicle endocytosis. shRNA-mediated knockdown of the AP-2 complex results in an approximately 96% reduction of this protein complex in primary neurons. We used simultaneous expression of shRNA and pHluorin-tagged vesicle components to show that the absence of AP-2 significantly slows but does not prevent the endocytosis of four of the major synaptic vesicle transmembrane proteins. We show that in the absence of AP-2, the AP-1 adaptor complex appears to functionally substitute for AP-2 but results in complex internalization kinetics that are now sensitive to the guanine-nucleotide exchange factor for ADP-ribosylation factor GTPase (ARF-GEF) inhibitor brefeldin-A (BFA). Simultaneous removal of both AP-2 and AP-1 prevents this compensatory substitution and results in slowed but functional endocytosis. These results demonstrate that in the absence of AP-2, SV proteins still become endocytosed, and synaptic vesicle recycling remains operational.

Indexed as

Action PotentialsAdaptor Protein Complex 1Adaptor Protein Complex 2Adaptor Protein Complex mu SubunitsADP-Ribosylation FactorsAnimalsAnimals, NewbornBrefeldin AEndocytosisGene Knockdown TechniquesGene SilencingGTP PhosphohydrolasesGuanine Nucleotide Exchange FactorsIn Vitro TechniquesKineticsNeuronsAdaptor Protein Complex 1Adaptor Protein Complex 2Adaptor Protein Complex mu SubunitsADP-Ribosylation FactorsBrefeldin AGTP PhosphohydrolasesGuanine Nucleotide Exchange Factors

Identifiers

PMID19321783
PMCPMC2713063
OpenAlexW2008315205

What OpenQuestion holds

Textmetadata
LicenceTDM
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.