Reaction catalyzed by DNA-formamidopyrimidine glycosylase (3.2.2.23)

	DNA containing 7-methyl-7-deazaguanine residues	+		H2O	=			+
	DNA containing 7-methyl-7-deazaguanine residues	+		H2O	=		7-methyl-7-deazaguanine	+		DNA