Triad3A regulates synaptic strength by ubiquitination of Arc.
Triad3A regulates synaptic strength by ubiquitination of Arc.
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DOI:
10.1016/j.neuron.2014.05.016
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发表时间:
2014-06-18
期刊:
影响因子:
16.2
通讯作者:
Ehlers MD
中科院分区:
文献类型:
--
作者:
Mabb AM;Je HS;Wall MJ;Robinson CG;Larsen RS;Qiang Y;Corrêa SA;Ehlers MD
Activity-dependent gene transcription and protein synthesis underlie many forms of learning-related synaptic plasticity. At excitatory glutamatergic synapses, the immediate early gene product Arc/Arg3.1 couples synaptic activity to postsynaptic endocytosis of AMPA-type glutamate receptors. Although the mechanisms for Arc induction have been described, little is known regarding the molecular machinery that terminates Arc function. Here we demonstrate that the RING domain ubiquitin ligase Triad3A/RNF216 ubiquitinates Arc, resulting in its rapid proteasomal degradation. Triad3A associates with Arc, localizes to clathrin-coated pits, and is associated with endocytic sites in dendrites and spines. In the absence of Triad3A, Arc accumulates, leading to the loss of surface AMPA receptors. Furthermore, loss of Triad3A mimics and occludes Arc-dependent forms of synaptic plasticity. Thus, degradation of Arc by clathrin-localized Triad3A regulates the availability of synaptic AMPA receptors and temporally tunes Arc-mediated plasticity at glutamatergic synapses.
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影响因子:
--
作者:
Bayou N;Belhadj A;Daoud H;Briault S;Helayem MB;Chaabouni H;M'rad R
通讯作者:
M'rad R
影响因子:
16.2
作者:
Chowdhury, Shoaib;Shepherd, Jason D.;Worley, Paul F.
通讯作者:
Worley, Paul F.
DOI:
10.1074/jbc.m112.356337
发表时间:
2012-06-29
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Craig TJ;Jaafari N;Petrovic MM;Jacobs SC;Rubin PP;Mellor JR;Henley JM
通讯作者:
Henley JM
影响因子:
16.2
作者:
Kessels, Helmut W.;Malinow, Roberto
通讯作者:
Malinow, Roberto
DOI:
10.1073/pnas.0806518106
发表时间:
2009-01-06
影响因子:
11.1
作者:
Kawashima, Takashi;Okuno, Hiroyuki;Bito, Haruhiko
通讯作者:
Bito, Haruhiko