several human glycoproteins , including alpha 1-antitrypsin , alpha 1-acid glycoprotein , transferrin , caeruloplasmin and alpha 2hs-glycoprotein , synthesized by the hepatoma-derived cell line hepg2 were observed to contain covalently linked sulphate .
C0017968
glycoproteins
C0051477
alpha 2hs-glycoprotein