Evidence map›Paper›PMID 7681585›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1993

Brain contains two forms of synaptic vesicle protein 2.

S M Bajjalieh, K Peterson, M Linial, R H Scheller

Open access · greenAbstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

80 citing papers in PubMed, 198 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Fully Automated Azeotropic Drying-Free Synthesis of [Molecules (Basel, Switzerland) · 2026
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  6. Impaired glymphatic function is associated with synaptic loss in cognitive impairment.European journal of nuclear medicine and molecular imaging · 2026
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  7. Article
  8. Mechanisms underlying allosteric modulation of antiseizure medication binding to synaptic vesicle protein 2A (SV2A).Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. [Brain communications · 2025
    Article
  14. Article
  15. Challenges and rewards of in vivo synaptic density imaging, and its application to the study of depression.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Review
  16. Article
  17. Article
  18. Evaluation of [EJNMMI research · 2024
    Article
  19. Article
  20. APOE ε4 is associated with decreased synaptic density in cognitively impaired participants.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article

20 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

4 authors at 1 institution in 1 country.

S M BajjaliehHoward Hughes Medical Institute, Stanford University, CA 94305-5426.
K Peterson
M Linial
R H Scheller
Howard Hughes Medical Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Molecular cloning of a cDNA encoding synaptic vesicle protein 2 (SV2) revealed that it is homologous to a family of proton cotransporters from bacteria and fungi and to a related family of glucose transporters found in mammals. The similarity to proton cotransporters raised the possibility that SV2 might mediate the uptake of neurotransmitters into vesicles, an activity known to require a proton gradient. To determine whether SV2 is a member of a family of vesicular proteins, we used the SV2 clone to screen for similar cDNAs in rat brain. We characterized 42 clones, 25 of which encode SV2 and 4 of which encode a protein, SV2B, that is 65% identical and 78% similar to SV2. The protein encoded by SV2B cDNA is recognized by the monoclonal antibody that defines the SV2 protein. When SV2B is expressed in COS cells, antibody labeling is reticular in nature, suggesting that SV2B, like SV2 (hence, SV2A), is segregated to intracellular membranes. The expression of SV2B is limited to neural tissue. While both forms of SV2 are expressed in all brain regions, SV2B is expressed at highest levels in the cortex and hippocampus, whereas the highest level of expression of SV2A is in subcortical regions. Therefore, the SV2 proteins, like other characterized synaptic vesicle proteins, comprise a small gene family.

Indexed as

Amino Acid SequenceAnimalsBase SequenceBlotting, NorthernBlotting, SouthernBlotting, WesternBrainCell LineCerebral CortexCloning, MolecularDNAHippocampusMembrane GlycoproteinsMolecular Sequence DataMultigene FamilyNerve Tissue ProteinsDNAMembrane GlycoproteinsNerve Tissue ProteinsRecombinant ProteinsRNASv2a protein, ratSV2B protein, humanSv2b protein, mouseSv2b protein, rat

Identifiers

PMID7681585
PMCPMC46043
OpenAlexW2039779597

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.