Evidence for the presence and structure of asparagine-linked oligosaccharide units in the core protein of proteodermatan sulphate

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Abstract
The N-glycosidically linked oligosaccharides were liberated by hydrazinolysis from purified proteodermatan sulphate from newborn-calf skin and reduced with NaB3H4 at the reducing terminal sugar. One asparagine-linked oligosaccharide chain was linked to one core-protein molecule in proteodermatan sulphate. Structural sequences were analysed by using exoglycosidase digestion. These oligosaccharides were composed of di- and tri-antennary oligosaccharide structures of complex type.