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mSYD1A, a Mammalian Synapse-Defective-1 Protein, Regulates Synaptogenic Signaling and Vesicle Docking

Wentzel, Corinna and Sommer, Julia E. and Nair, Ramya and Stiefvater, Adeline and Sibarita, Jean-Baptiste and Scheiffele, Peter. (2013) mSYD1A, a Mammalian Synapse-Defective-1 Protein, Regulates Synaptogenic Signaling and Vesicle Docking. Neuron, Vol. 78, H. 6. pp. 1012-1023.

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Official URL: http://edoc.unibas.ch/dok/A6146250

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Abstract

Structure and function of presynaptic terminals are critical for the transmission and processing of neuronal signals. Trans-synaptic signaling systems instruct the differentiation and function of presynaptic release sites, but their downstream mediators are only beginning to be understood. Here, we identify the intracellular mSYD1A (mouse Synapse-Defective-1A) as a regulator of presynaptic function in mice. mSYD1A forms a complex with presynaptic receptor tyrosine phosphatases and controls tethering of synaptic vesicles at synapses. mSYD1A function relies on an intrinsically disordered domain that interacts with multiple structurally unrelated binding partners, including the active zone protein liprin-α2 and nsec1/munc18-1. In mSYD1A knockout mice, synapses assemble in normal numbers but there is a significant reduction in synaptic vesicle docking at the active zone and an impairment of synaptic transmission. Thus, mSYD1A is a regulator of presynaptic release sites at central synapses.
Faculties and Departments:05 Faculty of Science > Departement Biozentrum > Neurobiology > Cell Biology (Scheiffele)
UniBasel Contributors:Scheiffele, Peter
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Cell Press
ISSN:0896-6273
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:19 Jul 2013 07:43
Deposited On:19 Jul 2013 07:38

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