2.3.1.158 glycoprotein enzyme contains 4 potential N-glycosylation sites at residues N161, N381, N434, and N647 660241 2.3.1.158 glycoprotein extensive deglycosylation severely decreases the activity 685341 2.3.1.158 glycoprotein four glycosylation sites, the degree of glycosylation site N469 is the largest -, 755830