Cited by 745Neuroscience and Neuropharmacology ResearchCellular transport and secretionAmino Acid Enzymes and Metabolism

VGLUTs define subsets of excitatory neurons and suggest novel roles for glutamate

Fremeau, Robert T, Voglmaier, Susan, Seal, Rebecca P, Edwards, Robert H·2004·Trends in Neurosciences

Abstract

Exocytotic release of the excitatory neurotransmitter glutamate depends on transport of this amino acid into synaptic vesicles. Recent work has identified a distinct family of proteins responsible for vesicular glutamate transport (VGLUTs) that show no sequence similarity to the other two families of vesicular neurotransmitter transporters. The distribution of VGLUT1 and VGLUT2 accounts for the ability of most established excitatory neurons to release glutamate by exocytosis. Surprisingly, they show a striking complementary pattern of expression in adult brain that might reflect differences in membrane trafficking. By contrast, VGLUT3 is expressed by many cells traditionally considered to release a different classical transmitter, suggesting novel roles for glutamate as an extracellular signal. VGLUT3 also differs from VGLUT1 and VGLUT2 in its subcellular location, with somatodendritic as well as axonal expression.

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Crossref · 10.1016/j.tins.2003.11.005

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Authors
Fremeau, R. T., Voglmaier, S., Seal, R. P., & Edwards, R. H.
Affiliations
University of California, San Francisco (US)
Corresponding author
Edwards, Robert H
Venue
Trends in Neurosciences
Publisher
Elsevier BV
Published
2004-02
Volume
27
Issue
2
Pages
98-103
ISSN
0166-2236 (ISSN-L)
OpenAlex
W2050123488
Cited by
745
References
65
Citations by year
2026: 16 · 2025: 18 · 2024: 26 · 2023: 27 · 2022: 35 · 2021: 36 · 2020: 31 · 2019: 26 · 2018: 31 · 2017: 26 · 2016: 34 · 2015: 28 · 2014: 36 · 2013: 35 · 2012: 35
FWCI
3.06
Type
journal article
Language
en
Open access
closed
Locations
  • Trends in Neurosciences (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institutes of Health
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
Keywords
vesicular glutamate transporter, VGLUT1, VGLUT2, VGLUT3, glutamate release, excitatory neurons, synaptic vesicles, membrane trafficking
MeSH terms
Animals, Brain, Carrier Proteins, Exocytosis, Humans, Synaptic Transmission, Synaptic Vesicles, Tissue Distribution, Signal Transduction, Excitatory Postsynaptic Potentials, Membrane Transport Proteins, Amino Acid Transport Systems, Acidic, Amino Acid Transport System X-AG, Vesicular Transport Proteins, Vesicular Glutamate Transport Proteins, Vesicular Glutamate Transport Protein 1, Vesicular Glutamate Transport Protein 2

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