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Cell Biochem Biophys. 2006;46(3):303-16.

The Na,K-ATPase receptor complex: its organization and membership.

Author information

1
Department of Physiology, Pharmacology, Metabolism and Cardiovascular Sciences, Medical University of Ohio, Toledo, OH 43614, USA.

Abstract

A major difference between the Na,K-ATPase ion pump and other P-type ATPases is its ability to bind cardiotonic steroids such as ouabain. Na,K-ATPase also interacts with many membrane and cytosolic proteins. In addition to their role in Na,K-ATPase regulation, it became apparent that some of the newly identified interactions are capable of organizing the Na,K-ATPase into various signaling complexes. This new function confers a ligand-like effect to cardiotonic steroids on cellular signal transduction. This article reviews these new developments and provides a comparison of Na,K-ATPase-mediated signal transduction with other receptors and ion transporters.

PMID:
17272855
[Indexed for MEDLINE]

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