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

作者：Chang, Yung Fu; Chou, Hui Ju; Yen, Ying Cheng; Chang, Hsueh Wei; Hong, Yi Ren; Huang, Hurng Wern^*; Tseng, Chao Neng

来源：FEBS LETTERS, 2012, 586(19): 3111-3116.

DOI：10.1016/j.febslet.2012.07.068

• Neuromuscular junction
• mRNA localization
• mRNA targeting
• Synapse
• AChR
• Chrna1
• Agrin
• Staufen

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 int

• 出版日期2012-9-21
• 单位中山大学