Immunogen sequence: YFCMNISSQG DGACVLLRAL EPLEGLETMR QLRSTLRKGT ASRVLKDREL CSGPSKLCQA LAINKSFDQR DLAQDEAVWL ERGPLEPSEP AVVAAARVGV GHAGEWARKP LRFYVRGS. MPG functions in the hydrolysis of the deoxyribose N-glycosidic bond to excise 3-methyladenine, and 7-m