Agrin induces association of Chrna1 mRNA and nicotinic acetylcholine receptor in C2C12 myotubes

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• 作者：Yung-Fu Chang ; Hui-Ju Chou ; Ying-Cheng Yen ; Hsueh-Wei Chang ; Yi-Ren Hong ; Hurng-Wern Huang ; Chao-Neng Tseng
• 关键词：AChR ; aceylcholine receptor ; NMJ ; neuromuscular junction ; BTX ; bungarotoxin
• 刊名：FEBS Letters
• 出版年：2012
• 出版时间：21 September, 2012
• 年：2012
• 卷：586
• 期：19
• 页码：3111-3116
• 全文大小：688 K

文摘

In the mammalian central nervous system transcripts of certain synaptic components are localized near the synapse, allowing for rapid regulation of protein levels. Here we test whether an mRNA localization mechanism also exists in the postsynaptic specialization induced by agrin in C2C12 myotubes. RT-PCR showed that Chrna1 was co-purified with nicotinic acetylcholine receptor (AChR) isolated by affinity column or by ultracentrifugation. In addition, Stau1 was found to interact with Chrna1 mRNA, and knocking down of Stau1 by RNAi resulted in defective AChR clustering. These results suggest that mRNA localization also participates in the formation of mammalian neuromuscular junction (NMJ).

Structured summary of protein interactions

AChR alpha 1 physically interacts with Stau1 by pull down (View interaction)