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Medical Definition of Glycophorin
1. The major sialoglycoprotein of the human erythrocyte membrane. It consists of at least two sialoglycopeptides and is composed of 60% carbohydrate including sialic acid and 40% protein. It is involved in a number of different biological activities including the binding of mn blood groups, influenza viruses, kidney bean phytohemagglutinin, and wheat germ agglutinin. (12 Dec 1998)