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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2010-12-8
pubmed:abstractText
During exocytosis, classical and amino acid neurotransmitters are released from the lumen of synaptic vesicles to allow signaling at the synapse. The storage of neurotransmitters in synaptic vesicles and other types of secretory vesicles requires the activity of specific vesicular transporters. Glutamate and monoamines such as dopamine are packaged by VGLUTs and VMATs respectively. Changes in the localization of either protein have the potential to up- or down regulate neurotransmitter release, and some of the mechanisms for sorting these proteins to secretory vesicles have been investigated in cultured cells in vitro. We have used Drosophila molecular genetic techniques to study vesicular transporter trafficking in an intact organism and have identified a motif required for localizing Drosophila VMAT (DVMAT) to synaptic vesicles in vivo. In contrast to DVMAT, large deletions of Drosophila VGLUT (DVGLUT) show relatively modest deficits in localizing to synaptic vesicles, suggesting that DVMAT and DVGLUT may undergo different modes of trafficking at the synapse. Further in vivo studies of DVMAT trafficking mutants will allow us to determine how changes in the localization of vesicular transporters affect the nervous system as a whole and complex behaviors mediated by aminergic circuits.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1933-6942
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
302-5
pubmed:meshHeading
pubmed:articleTitle
Vesicular neurotransmitter transporter trafficking in vivo: moving from cells to flies.
pubmed:publicationType
Journal Article