DeoxyuridinePyrimidinesPyrimidine NucleotidesPyrimidine DimersDeoxyuracil NucleotidesPyrimidine NucleosidesPyrophosphatasesBromodeoxyuridineUracilDeoxyribonucleosidesFloxuridineThymidineDCMP DeaminaseUridineUracil NucleotidesThymidine MonophosphateUridine PhosphorylaseThymidylate SynthaseCytidineDeoxyribonuclease (Pyrimidine Dimer)Pyrimidine PhosphorylasesDeoxycytidine MonophosphateDNAIdoxuridineOrotic AcidDeoxyribonucleotidesIn Situ Nick-End LabelingThyminePentosyltransferasesThymine NucleotidesMegaloblastsOrotate PhosphoribosyltransferaseUltraviolet RaysNucleosidesUracil-DNA GlycosidaseNucleotide DeaminasesPurinesDihydroorotaseDeoxyribodipyrimidine Photo-LyaseMitochondrial EncephalomyopathiesThymidine PhosphorylaseDeaminationN-Glycosyl HydrolasesRhodotorulaAspartate CarbamoyltransferasePurine NucleotidesSarcoma, YoshidaApoptosisCarbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing)Orotidine-5'-Phosphate DecarboxylaseKineticsNucleotidesMethotrexateFolic Acid AntagonistsBase SequenceThymidine KinaseDihydroorotate OxidaseEscherichia coliUridine KinaseTritiumDNA GlycosylasesMolecular Sequence DataUridine MonophosphateDNA RepairPurine NucleosidesDNA DamageFluorodeoxyuridylateUridine TriphosphateTetrahydrofolatesCell DivisionSubstrate SpecificityFolic Acid DeficiencyAnemia, MegaloblasticCell ProliferationMutationCell LineLeukemia L1210DNA ReplicationPurine-Pyrimidine Metabolism, Inborn ErrorsCytidine DeaminaseAntimetabolitesTrimetrexateFluorouracilTetrahydrofolate DehydrogenaseRibonucleosidesFolic AcidCells, CulturedThiamineCarbamyl PhosphateMitosporic FungiNucleoside DeaminasesImmunohistochemistryTime FactorsCell SurvivalNucleic Acid ConformationVitamin B 12 DeficiencyOxidoreductases Acting on CH-CH Group DonorsRats, Sprague-DawleyAzauridineRNA