The synapsins and the regulation of synaptic function |
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Authors: | Martin B hler,Fabio Benfenati,Flavia Valtorta,Paul Greengard |
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Affiliation: | Laboratory of Molecular and Cellular Neuroscience, Rockfeller University, New York, NY 10021. |
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Abstract: | Synapsin I and II are a family of synaptic vesicle-associated phosphoproteins involved in the short-term regulation of neurotransmitter release. In this review, we discuss a working model for the molecular mechanisms by which the synapsins act. We propose that synapsin I links synaptic vesicles to actin filaments in the presynaptic nerve terminal and that these interactions are modulated by the reversible phosphorylation of synapsin I through various signal transduction pathways. The high degree of homology between the synapsins suggests that some of the functional properties of synapsin I are also shared by synapsin II. |
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