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FEBS Lett. 1993 Feb 22;318(1):95-9.

Expression cloning of an epithelial amiloride-sensitive Na+ channel. A new channel type with homologies to Caenorhabditis elegans degenerins.

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1
Institut de Pharmacologie Mol├ęculaire et Cellulaire, Valbonne, France.

Abstract

A complementary DNA encoding an amiloride-sensitive Na+ channel has been cloned and characterized from rat colon. The protein encoded by the cDNA has a sequence of 699 amino acids (79 kDa) containing several putative membrane spanning domains and potential phosphorylation sites. It forms a channel that has the electrophysiological and pharmacological properties characteristic of the epithelial Na+ channel. Homologies (including in transmembrane domains) have been found between a part of the channel sequence and the Mec4 gene product of Caenorhabditis elegans, a protein associated with mutation-induced neuronal degeneration.

PMID:
8382172
[Indexed for MEDLINE]
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