Deoxycytidine KinaseDeoxycytidineDeoxycytidine MonophosphateTetrahydrouridineCytidineDCMP DeaminaseDeoxycytosine NucleotidesDeoxyribonucleosidesDeoxyadenosinesDeoxyuridineBromodeoxycytidineArabinofuranosylcytosine TriphosphateCytidine DeaminaseCytarabineDeoxyribonucleotidesArabinonucleosidesDioxolanesNucleoside DeaminasesPhosphotransferasesNucleosidesAzacitidineThymidine KinaseDeaminationThymidineCladribineAntimetabolites, AntineoplasticCytosineUridineCytosine NucleotidesDeoxyguanosinePyrimidine NucleosidesPyrimidine NucleotidesThymine NucleotidesArabinonucleotidesNucleotide DeaminasesThymidine MonophosphateRibonucleotide ReductasesLeukemia L1210ZalcitabineAdenosine KinaseEquilibrative Nucleoside Transporter 1Nucleoside-Phosphate KinaseCytidine TriphosphateDNA5'-NucleotidaseKineticsCytidine MonophosphateArabinofuranosyluracilPurine NucleosidesDeoxyadenine NucleotidesUridine KinaseAminohydrolasesUracilDNA MethylationPhosphotransferases (Alcohol Group Acceptor)Ribonucleoside Diphosphate ReductaseCell LineSimplexvirusLeukemiaFloxuridineUracil NucleotidesLactobacillus acidophilusTritiumSubstrate SpecificityDeoxyguanine NucleotidesDrug ResistanceAdenosine Deaminase InhibitorsNucleotidesPhosphorylationNucleoside Transport ProteinsThioinosinePentosyltransferasesTumor Cells, CulturedBromodeoxyuridineHydroxyureaVidarabineRibonucleotidesProdrugsCell Line, TumorStereoisomerismRibonucleosides2-ChloroadenosineAntiviral AgentsMutationCell SurvivalMolecular Sequence DataDNA Modification MethylasesBase SequenceDrug Screening Assays, AntitumorDNA ReplicationSpectrometry, Mass, Fast Atom BombardmentThymidylate SynthaseLymphocytesCell DivisionAntineoplastic AgentsPurine-Nucleoside PhosphorylaseChromatography, High Pressure Liquid