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Differentiation. 1991 Feb;46(1):35-42.

N-cadherin-associated proteins in chicken muscle.

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1
Department of Biology, University of Toledo, OH 43606.

Abstract

The development and functional activity of the heart depends on the regulated interaction of cardiac cells. This is in part mediated by cell-cell adhesion molecules such as N-cadherin. N-cadherin belongs to a family of Ca+(+)-dependent, transmembrane, adhesion glycoproteins that promote cell-cell adhesion by molecular self-association extracellularly, and interact intracellularly with the cytoskeleton through highly conserved carboxy-terminal domains. In this paper we show that embryonic chicken cardiac myocytes grown in vitro display Ca+(+)-dependent adhesion and express N-cadherin. When immunoprecipitated from detergent extracts of embryonic chicken cardiac and skeletal muscle cultures, N-cadherin associates with proteins immunologically unrelated to itself. The associated proteins are similar in molecular weight to proteins that coimmunoprecipatate with E-cadherin from human epithelial cells. We postulate that the coimmunoprecipitating proteins are involved in linking the cadherins to the cytoskeleton.

[Indexed for MEDLINE]

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