期刊
NEUROSCIENCE
卷 202, 期 -, 页码 147-157出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neuroscience.2011.11.003
关键词
Plk2; SNK; homeostatic plasticity; polo kinase; posttranslational modification
资金
- NIH/NINDS [NS048085]
Polo family kinases play important roles in cellular proliferation as well as neuronal synaptic plasticity. However, the posttranslational regulation of these kinases is not fully understood. Here, we identified several novel Plk2 phosphorylation sites stimulated by Plk2 itself. By site-directed mutagenesis, we uncovered three additional hyperactivating Plk2 mutations as well as a series of residues regulating Plk2 steady-state expression level. Because of the established role of Plk2 in homeostatic negative control of excitatory synaptic strength, these phosphorylation sites could play an important role in the rapid activation, expansion, and prolongation of Plk2 signaling in this process. (C) 2011 IBRO. Published by Elsevier Ltd. All rights reserved.
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