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Cell. 1995 Sep 8;82(5):773-83.

Beta-NAP, a cerebellar degeneration antigen, is a neuron-specific vesicle coat protein.

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  • 1Laboratory of Neuro-Oncology, Rockefeller University, New York, New York 10021, USA.

Abstract

We have identified a target antigen in autoimmune cerebellar degeneration, beta-NAP, that is closely related to the beta-adaptin and beta-COP coat proteins. Beta-NAP is a nonclathrin-associated phosphoprotein expressed exclusively in neurons, from E12 through adulthood. Beta-NAP is present in the neuronal soma and nerve terminal as soluble and membrane-bound pools and is associated with a discrete set of nerve-terminal vesicles. These results establish beta-NAP as a neuron-specific vesicle coat protein. We propose a model in which beta-NAP mediates vesicle transport between the soma and the axon terminus and suggest that beta-NAP may represent a general class of coat proteins that mediates apical transport in polarized cells.

PMID:
7671305
[PubMed - indexed for MEDLINE]
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