oligosaccharides , o-linked to serine or threonine , were present in elbre hcg beta , presumably on its cte as judged by the complete binding of desialylated elbre hcg beta to immobilized peanut agglutinin ( this lectin is specific for terminal galactose linked beta 1 -- -- 3 to n-acetylgalactosamine , a disaccharide exposed after desialylation of the o-linked oligosaccharides of standard hcg beta ) .
C0012611
disaccharide
C0028959
oligosaccharides