Reaction catalyzed by uracil-DNA glycosylase (3.2.2.27), double-stranded uracil-DNA glycosylase (3.2.2.28), thymine-DNA glycosylase (3.2.2.29)

	3,N4-ethenocytosine-mismatched double-stranded DNA	+		H2O	=			+		double-stranded DNA with abasic site
	3,N4-ethenocytosine-mismatched double-stranded DNA	+		H2O	=		3,N4-ethenocytosine	+		double-stranded DNA with abasic site