UracilUracil-DNA GlycosidaseUracil NucleotidesDNA GlycosylasesN-Glycosyl HydrolasesNucleotide Transport ProteinsDeoxyuracil NucleotidesBromouracilThyminePentosyltransferasesCytosineUracil MustardBase SequenceUridine MonophosphateDeaminationMolecular Sequence DataDNAUridine PhosphorylaseDihydrouracil Dehydrogenase (NADP)UridineTegafurArabinofuranosyluracilThiouracilDNA RepairDihydropyrimidine Dehydrogenase DeficiencyEscherichia coliThymine DNA GlycosylasePyrimidine NucleosidesDeoxyuridineOrotidine-5'-Phosphate DecarboxylaseMutationBase Pair MismatchOrotic AcidOrotate PhosphoribosyltransferaseNucleic Acid ConformationKineticsAmino Acid SequencePyrimidinesBase PairingSulfitesSubstrate SpecificityPyrophosphatasesPentoxylCytidine DeaminaseModels, MolecularFolic Acid DeficiencyAdenineGuaninePyrimidine NucleotidesHydroxyphenylazouracilDNA-(Apurinic or Apyrimidinic Site) LyaseNucleic Acid HeteroduplexesFluorouracil