. "Uracil-DNA glycosylases are widespread enzymes that are found in all living organisms." . "Uracil-DNA glycosylase (EC 3.2.2.27) and double-stranded uracil-DNA glycosylase (EC 3.2.2.28) form a central part of the DNA-repair machinery since they initiate the DNA base-excision repair pathway by hydrolyzing the N-glycosidic bond between uracil and the deoxyribose sugar thereby catalyzing the removal of mis-incorporated uracil from DNA." . . . "Uracil-DNA glycosylase" . "Uracil DNA glycohydrolase" . "Uracil-DNA N-glycosylase" . "Hydrolyzes single-stranded DNA or mismatched double-stranded DNA and polynucleotides, releasing free uracil." .