title: The hepatic asialoglycoprotein receptor.
abstract: Asialo- (i.e., galactose-terminal) glycoproteins are specifically and avidly recognized by a mammalian hepatic parenchymal cell receptor. This receptor, itself a glycoprotein, binds ligand molecules and directs their delivery to lysosomes for catabolism. The receptor is reutilized during this process of receptor-mediated endocytosis. Ligand specificity is conferred by galactose or N-acetyl-galactosamine at the nonreducing termini of the oligosaccharide chains. The receptor appears to be a transmembrane protein and is localized both to the cell surface as well as to several membranous intracellular compartments.
mesh_terms: D000818:Animals; D037263:Asialoglycoprotein Receptor; D001212:Asialoglycoproteins; D001665:Binding Sites; D002118:Calcium / Q000378:metabolism; D055598:Chemical Phenomena; D002621:Chemistry; D004705:Endocytosis; D006801:Humans; D066298:In Vitro Techniques; D007700:Kinetics; D008099:Liver / Q000378:metabolism*; D008970:Molecular Weight; D009961:Orosomucoid / Q000031:analogs & derivatives / Q000378:metabolism; D011817:Rabbits; D051381:Rats; D011971:Receptors, Immunologic / Q000302:isolation & purification / Q000378:metabolism*; D014018:Tissue Distribution
chemical_list: D037263:Asialoglycoprotein Receptor; D001212:Asialoglycoproteins; D009961:Orosomucoid; D011971:Receptors, Immunologic; C017030:asialoorosomucoid; D002118:Calcium