Reaction catalyzed by DNA-formamidopyrimidine glycosylase (3.2.2.23)

	DNA containing 7,8-dihydro-8-oxoguanine residues	+		H2O	=			+
	DNA containing 7,8-dihydro-8-oxoguanine residues	+		H2O	=		DNA	+		7,8-dihydro-8-oxoguanine