the glycoprotein was shown to be homogeneous by electrophoresis , sedimentation equilibrium , and n-terminal group determination , and to contain 19 % protein , 19 % d-galactose , 18 % n-acetyl-d-galactosamine , 15 % n-acetyl-d-glucosamine , 11 % l-fucose , 10 % sialic acid , and 1 % sulfate groups , corresponding to about 1800 amino acid residues and 400 carbohydrate side chains of about 9 monosaccharides .
C0007004
carbohydrate
C0026492
monosaccharides