- The endothelial cell binding site for advanced glycation end products consists of a complex: an integral membrane protein and a lactoferrin-like polypeptide. Schmidt, A.M., Mora, R., Cao, R., Yan, S.D., Brett, J., Ramakrishnan, R., Tsang, T.C., Simionescu, M., Stern, D. J. Biol. Chem. (1994)