Fukutin-related Protein Associates with the Sarcolemmal Dystrophin-Glycoprotein Complex

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Fukutin-related protein associates with the sarcolemmal dystrophin-glycoprotein complex.

Mutations in fukutin-related protein (FKRP) give rise to mild and more severe forms of muscular dystrophy. FKRP patients have reduced glycosylation of the extracellular protein dystroglycan, and FKRP itself shows sequence similarity to glycosyltransferases, implicating FKRP in the processing of dystroglycan. However, FKRP localization is controversial, and no FKRP complexes are known, so any FK...

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Dystroglycan and muscular dystrophies related to the dystrophin-glycoprotein complex.

Dystroglycan (DG) is an adhesion molecule composed of two subunits, alpha and beta, that are produced by the post-translational cleavage of a single precursor molecule. DG is a pivotal component of the dystrophin-glycoprotein complex (DGC), which connects the extracellular matrix to the cytoskeleton in skeletal muscle and many other tissues. Some muscular dystrophies are caused by mutations of ...

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Membrane organization of the dystrophin-glycoprotein complex.

The stoichiometry, cellular location, glycosylation, and hydrophobic properties of the components in the dystrophin-glycoprotein complex were examined. The 156, 59, 50, 43, and 35 kd dystrophin-associated proteins each possess unique antigenic determinants, enrich quantitatively with dystrophin, and were localized to the skeletal muscle sarcolemma. The 156, 50, 43, and 35 kd dystrophin-associat...

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ژورنال

عنوان ژورنال: Journal of Biological Chemistry

سال: 2007

ISSN: 0021-9258

DOI: 10.1074/jbc.c700061200