This page discusses glycoproteins, which are proteins with carbohydrate attachments via glycosylation. It highlights Glycophorin A, a significant glycoprotein in red blood cells that has O-linked and ...This page discusses glycoproteins, which are proteins with carbohydrate attachments via glycosylation. It highlights Glycophorin A, a significant glycoprotein in red blood cells that has O-linked and N-linked chains, influencing hydrophilicity and protein folding. Two polymorphic variants of glycophorin A are associated with blood groups M and N. Furthermore, this glycoprotein acts as an important entry point for the malaria parasite, Plasmodium falciparum, into red blood cells.