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Cell. 1998 May 1;93(3):455-66.

Odorant receptor localization to olfactory cilia is mediated by ODR-4, a novel membrane-associated protein.

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1
Howard Hughes Medical Institute, Department of Anatomy, The University of California, San Francisco 94143-0452, USA.

Abstract

Seven transmembrane domain receptors can be localized to different parts of the plasma membrane or to different intracellular compartments in a receptor-specific and cell type-specific fashion. We show here that the C. elegans genes odr-4 and odr-8 are required for localization of a subset of seven transmembrane domain odorant receptors to the cilia of olfactory neurons. Other cilia-signaling proteins, including ion channels, a G alpha protein, and even other receptor types, are localized via an odr-4/odr-8-independent pathway. odr-4 encodes a novel membrane protein that is expressed exclusively on intracellular membranes of chemosensory neurons, where it acts cell-autonomously to facilitate odorant receptor folding or localization.

PMID:
9590179
[Indexed for MEDLINE]
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