the mannose units are attached by 1 leads to 2 linkage , short oligosaccharides are bound to serine of the peptide chain by o-glycosidic linkages while polysaccharides are attached to asparagine of this peptide chain by a n glycosidic linkages probably through the intermediate of chitobiose .
C0028959
oligosaccharides
C0032594
polysaccharides