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

Authors
Journal
FEBS Letters
0014-5793
Publisher
Wiley Blackwell (John Wiley & Sons)
Publication Date
Volume
586
Issue
19
Identifiers
DOI: 10.1016/j.febslet.2012.07.068
Keywords
  • Neuromuscular Junction
  • Mrna Localization
  • Mrna Targeting
  • Synapse
  • Achr
  • Chrna1
  • Agrin
  • Staufen
Disciplines
  • Biology

Abstract

Abstract 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 1physically interactswithStau1bypull down(View interaction)

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