mSYD1A, a mammalian synapse-defective-1 protein, regulates synaptogenic signaling and vesicle docking.
mSYD1A, a mammalian synapse-defective-1 protein, regulates synaptogenic signaling and vesicle docking.
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DOI:
10.1016/j.neuron.2013.05.010
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发表时间:
2013-06-19
期刊:
影响因子:
16.2
通讯作者:
Scheiffele P
中科院分区:
文献类型:
--
作者:
Wentzel C;Sommer JE;Nair R;Stiefvater A;Sibarita JB;Scheiffele P
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 novel 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 knock-out 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 novel regulator of presynaptic release sites at central synapses.
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