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FEBS Lett. 1998 Oct 16;437(1-2):29-33.

Identification of a Torpedo homolog of Sam68 that interacts with the synapse organizing protein rapsyn.

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  • 1Department of Neuroscience, Howard Hughes Medical Institute, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.

Abstract

Nicotinic acetylcholine receptors (nAChRs) are initially expressed diffusely on the surface of myotubes and, in response to neuronally derived factors, cluster at the endplate to a final concentration of approximately 10000/microm2. The synaptic peripheral membrane protein rapsyn has been shown to mediate clustering of nAChRs in several systems. Here we describe the use of the yeast two-hybrid system to identify proteins that can interact with rapsyn. One of the clones we have identified is a Torpedo californica homolog of the Src-associated in mitosis protein (Sam68). We further show that Sam68, like rapsyn, is localized at the neuromuscular junction.

PMID:
9804166
[PubMed - indexed for MEDLINE]
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