1.11.1.14 glycoprotein 21% carbohydrate content 1.11.1.14 glycoprotein isozyme II: 6% w/w neutral carbohydrates 1.11.1.14 glycoprotein 3-6% glucosamine and mannose 1.11.1.14 glycoprotein isozyme H8 is an extracellular globular glycoprotein. The enzyme is N- and O-glycosylated to protect it against proteolytic degradation