The balance between capture and dissociation of presynaptic proteins controls the spatial distribution of synapses.
The balance between capture and dissociation of presynaptic proteins controls the spatial distribution of synapses.
复制标题
突触前蛋白质的捕获和解离之间的平衡控制着突触的空间分布
DOI:
10.1016/j.neuron.2013.04.035
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发表时间:
2013-06-19
期刊:
影响因子:
16.2
通讯作者:
Shen K
中科院分区:
文献类型:
--
作者:
Wu YE;Huo L;Maeder CI;Feng W;Shen K
The location, size and number of synapses critically influence the specificity and strength of neural connections. In axons, synaptic vesicle (SV) and active zone (AZ) proteins are transported by molecular motors and accumulate at discrete presynaptic loci. Little is known about the mechanisms coordinating presynaptic protein transport and deposition to achieve proper distribution of synaptic material. Here we show that SV and AZ proteins exhibit extensive co-transport and undergo frequent pauses. At the axonal and synaptic pause sites, the balance between the capture and dissociation of mobile transport packets determines the extent of presynaptic assembly. The small G protein ARL-8 inhibits assembly by promoting dissociation, while a JNK kinase pathway and AZ assembly proteins inhibit dissociation. Furthermore, ARL-8 directly binds to the UNC-104/KIF1A motor to limit the capture efficiency. Together, molecular regulation of the dichotomy between axonal trafficking and local assembly controls vital aspects of synapse formation and maintenance.
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影响因子:
3.6
作者:
Bury LA;Sabo SL
通讯作者:
Sabo SL
影响因子:
32.4
作者:
Garg S;Sharma M;Ung C;Tuli A;Barral DC;Hava DL;Veerapen N;Besra GS;Hacohen N;Brenner MB
通讯作者:
Brenner MB
影响因子:
3.3
作者:
Hermann, GJ;Schroeder, LK;Priess, JR
通讯作者:
Priess, JR
影响因子:
3.7
作者:
Hellman AB;Shen K
通讯作者:
Shen K
DOI:
10.1038/nrm3117
发表时间:
2011-06
期刊:
Nature reviews. Molecular cell biology
影响因子:
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作者:
通讯作者:
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