ThymidineThymidine KinaseThymidine PhosphorylaseThymidine MonophosphateNonsense Mediated mRNA DecayRNA StabilityThymine NucleotidesGanciclovirCell DivisionSimplexvirusDeoxyuridineDNATritiumKineticsNucleosidesCodon, NonsenseFloxuridineBromodeoxyuridineUridineAutoradiographyThymineRNA, MessengerCells, CulturedDeoxyribonucleosidesCell LineTime FactorsDNA ReplicationThymidylate SynthaseIdoxuridineBase SequenceArabinofuranosyluracilAcyclovirMolecular Sequence DataMutationL Cells (Cell Line)Antiviral AgentsHerpesvirus 1, HumanPyrimidine NucleosidesTumor Cells, CulturedGenetic TherapyAminopterinUracilLymphocytesTransfectionNucleoside-Phosphate KinaseBromouracilDihydrouracil Dehydrogenase (NAD+)Cell CycleMitogensDeoxycytidine KinaseGenes, ViralDeoxyribonucleotidesTranscription, GeneticDideoxynucleosidesGenetic VectorsZidovudineDose-Response Relationship, DrugDeoxyriboseProdrugsProtein BiosynthesisEscherichia coliGenesPlasmidsHydroxyureaCarbon RadioisotopesGenes, Transgenic, SuicideCell SurvivalTemperatureGene Expression RegulationMitochondrial EncephalomyopathiesHeLa CellsDNA, ViralHalf-LifeHypoxanthinesDNA, NeoplasmLymphocyte ActivationLeukemia L1210ExoribonucleasesPromoter Regions, GeneticModels, BiologicalRNACulture MediaUridine PhosphorylaseCell NucleusCytidineEndoribonucleasesMitosisDeoxyuracil NucleotidesNeoplasms, ExperimentalAmino Acid SequenceFluorescence PolarizationPyrimidine Nucleotides3' Untranslated RegionsCell CountSpectrometry, FluorescenceGuanineTrifluridineUridine KinasePhosphorylationRecombinant Proteins