Synaptic vesicles position complexin to block spontaneous fusion.
Synaptic vesicles position complexin to block spontaneous fusion.
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DOI:
10.1016/j.neuron.2012.11.005
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发表时间:
2013-01-23
期刊:
影响因子:
16.2
通讯作者:
Dittman JS
中科院分区:
文献类型:
--
作者:
Wragg RT;Snead D;Dong Y;Ramlall TF;Menon I;Bai J;Eliezer D;Dittman JS
Synapses continually replenish their synaptic vesicle (SV) pools while suppressing spontaneous fusion events, thus maintaining a high dynamic range in response to physiological stimuli. The presynaptic protein complexin can both promote and inhibit fusion through interactions between its alpha-helical domain and the SNARE complex. In addition, complexin’s C-terminal half is required for the inhibition of spontaneous fusion in worm, fly, and mouse, although the molecular mechanism remains unexplained. We show here that complexin’s C-terminal domain binds lipids through a novel protein motif, permitting complexin to inhibit spontaneous exocytosis in vivo by targeting complexin to SVs. We propose that the SV pool serves as a platform to sequester and position complexin where it can intercept the rapidly assembling SNAREs and control the rate of spontaneous fusion.
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DOI:
10.1126/science.1166500
发表时间:
2009-01-23
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Giraudo CG;Garcia-Diaz A;Eng WS;Chen Y;Hendrickson WA;Melia TJ;Rothman JE
通讯作者:
Rothman JE
影响因子:
9.2
作者:
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通讯作者:
Dittman, Jeremy S.
影响因子:
16.8
作者:
通讯作者:
--
DOI:
10.1523/jneurosci.0378-08.2008
发表时间:
2008-07-09
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Dittman JS;Kaplan JM
通讯作者:
Kaplan JM
影响因子:
15.9
作者:
Ashery, Uri;Bielopolski, Noa;Barak, Boaz;Yizhar, Ofer
通讯作者:
Yizhar, Ofer