The alpha and beta subunits of lamb kidney Na,K-ATPase are both glycoproteins |
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Authors: | H Munakata K Schmid J H Collins A S Zot L K Lane A Schwartz |
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Affiliation: | Department of Biochemistry Boston University School of Medicine 80 East Concord Street Boston, MA. 02118 USA;Department of Pharmacology and Cell Biophysics University of Cincinnati College of Medicine 231 Bethesda Avenue Cincinnati, Ohio 45267 USA |
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Abstract: | We have determined the carbohydrate compositions of the protein components of lamb kidney Na,K-ATPase. The α subunit contains a total of about 16 monosaccharide residues per mol of protein, while the β subunit contains about 36 residues per mol. The γ protein, a proteolipid associated with the Na,K-ATPase, contains only traces of carbohydrate. A comparison of our results with those of others shows considerable variability in the carbohydrate compositions of α and β subunits from different species. |
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Keywords: | (Na,K)-ATPase sodium plus potassium stimulated adenosine triphosphatase (EC 3.6.1.3.) SDS sodium dodecylsulfate |
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