Which type of glycoprotein is collagen?: (A) O-linkage, (B) N-linkage, (C) GPI linkage, (D) none
Answer is A. O-glycosidic linkage: Mucin proteoglycans collagens Nuclear and cytosolic proteins N-Glycosidic linkage type: complex High mannose Hybrid GPI anchored: Acetylcholinesterase alkaline phosphatase Decay-accelerating factor 5'-nucleotidase Thy 1 antigen Variable surface glycoprotein Reference: Harpers illustrated biochemistry 31st edition pg549