Peptide sequence: QRDLAQDEAV WLERGPLEPS EPAVVAAARV GVGHAGEWAR KPLRFYVRGS Sequence homology: Cow: 86%; Dog: 79%; Horse: 79%; Human: 100%; Rat: 79%. MPG functions in the hydrolysis of the deoxyribose N-glycosidic bond to excise 3-methyladenine, and 7-methy