Low expression of lipid-linked oligosaccharide due to a functionally altered Dol-P-Man synthase reduces protein glycosylation in cAMP-dependent protein kinase deficient Chinese hamster ovary cells.

Abstract excerpt

Chinese hamster ovary cells express a wide variety of glycoproteins with Mr ranging from 15,000 to 200,000 dalton and higher. Glycosylation of these proteins was much less in cAMP-dependent protein kinase (PKA)-deficient mutants which expressed either (i) a defective C-subunit with altered substrate specificity and having no detectable type II kinase (mutant 10215); or (ii) an altered RI subunit and having no...

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