Protein 600 is a microtubule/endoplasmic reticulum-associated protein in CNS neurons
Protein 600 is a microtubule/endoplasmic reticulum-associated protein in CNS neurons
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DOI：
10.1523/jneurosci.5278-07.2008
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发表时间：
2008-04-02
影响因子：
5.3
通讯作者：
Nguyen, Minh Dang
中科院分区：
文献类型：
--
作者：
Shim, Su Yeon;Wang, Jian;Nguyen, Minh Dang
There is an increasing body of literature pointing to cytoskeletal proteins as spatial organizers and interactors of organelles. In this study, we identified protein 600 ( p600) as a novel microtubule- associated protein ( MAP) developmentally regulated in neurons. p600 exhibits the unique feature to interact with the endoplasmic reticulum ( ER). Silencing of p600 by RNA interference ( RNAi) destabilizes neuronal processes in young primary neurons undergoing neurite extension and containing scarce staining of the ER marker Bip. Furthermore, in utero electroporation of p600 RNAi alters neuronal migration, a process that depends on synergistic actions of microtubule dynamics and ER functions. p600- depleted migrating neurons display thin, crooked, and "zigzag" leading process with very few ER membranes. Thus, p600 constitutes the only known MAP to associate with the ER in neurons, and this interaction may impact on multiple cellular processes ranging from neuronal development to neuronal maturation and plasticity.
