Neuronal ubiquitin homeostasis.

Neuronal ubiquitin homeostasis.
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DOI:
10.1007/s12013-013-9634-4
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发表时间:
2013-09
影响因子:
2.6
通讯作者:
Wilson, Scott M.
Wilson, Scott M.
中科院分区:
生物学4区
文献类型:
--
作者:
Hallengren, Jada;Chen, Ping-Chung;Wilson, Scott M.

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神经元具有高度特化的细胞内区室,促进神经系统的发育和活动。泛素化是一种翻译后修饰,通过调节蛋白质丰度来控制神经元功能的许多方面。神经系统疾病如帕金森病、肌萎缩性侧索硬化症和Angleman综合征已经证实了这种信号通路的破坏。由于许多神经系统疾病表现出泛素蛋白聚集,神经元泛素稳态的丧失可能是疾病的一个重要因素。本文就神经元控制正常神经系统发育和功能所需的泛素自由池的机制以及蛋白质泛素化在调节突触活性中的新作用进行了综述。
Neurons have highly specialized intracellular compartments that facilitate the development and activity of the nervous system. Ubiquitination is a post-translational modification that controls many aspects of neuronal function by regulating protein abundance. Disruption of this signaling pathway has been demonstrated in neurological disorders such as Parkinson’s disease, Amyotrophic Lateral Sclerosis and Angleman Syndrome. Since many neurological disorders exhibit ubiquitinated protein aggregates, the loss of neuronal ubiquitin homeostasis may be an important contributor of disease. This review discusses the mechanisms utilized by neurons to control the free pool of ubiquitin necessary for normal nervous system development and function as well as new roles of protein ubiquitination in regulating synaptic activity.
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