- Biphasic kinetics of the human DNA repair protein MED1 (MBD4), a mismatch-specific DNA N-glycosylase. Petronzelli, F., Riccio, A., Markham, G.D., Seeholzer, S.H., Stoerker, J., Genuardi, M., Yeung, A.T., Matsumoto, Y., Bellacosa, A. J. Biol. Chem. (2000)