Deoxycytidine KinaseDeoxycytidineDeoxycytidine MonophosphateCytidineTetrahydrouridineDCMP DeaminaseDeoxycytosine NucleotidesDeoxyribonucleosidesDeoxyadenosinesDeoxyuridineBromodeoxycytidineArabinofuranosylcytosine TriphosphateCytidine DeaminaseCytarabineDeoxyribonucleotidesNucleoside DeaminasesArabinonucleosidesPhosphotransferasesDioxolanesNucleosidesDeaminationAzacitidineThymidine KinaseThymidineCladribineAntimetabolites, AntineoplasticCytosineUridineDeoxyguanosineCytosine NucleotidesPyrimidine NucleosidesPyrimidine NucleotidesThymine NucleotidesArabinonucleotidesNucleotide DeaminasesKineticsThymidine MonophosphateRibonucleotide ReductasesLeukemia L1210ZalcitabineAdenosine KinaseEquilibrative Nucleoside Transporter 1Nucleoside-Phosphate KinaseCytidine TriphosphateDNA5'-NucleotidaseCytidine MonophosphateArabinofuranosyluracilPurine NucleosidesAminohydrolasesDeoxyadenine NucleotidesCell LineSubstrate SpecificityUracilUridine KinaseMolecular Sequence DataDNA MethylationPhosphotransferases (Alcohol Group Acceptor)Ribonucleoside Diphosphate ReductaseMutationUracil NucleotidesTritiumSimplexvirusLeukemiaFloxuridineBase SequenceLactobacillus acidophilusProdrugsPhosphorylationNucleotidesDeoxyguanine NucleotidesPentosyltransferasesStereoisomerismDrug ResistanceTumor Cells, CulturedAdenosine Deaminase InhibitorsCell Line, TumorNucleoside Transport ProteinsThioinosineChromatography, High Pressure LiquidBromodeoxyuridineRibonucleotidesHydroxyureaVidarabineCell SurvivalAmino Acid SequenceRibonucleosidesAntiviral AgentsDNA Replication2-ChloroadenosineEscherichia coliCell DivisionCells, CulturedDNA Modification MethylasesDrug Screening Assays, AntitumorLymphocytesPurine-Nucleoside PhosphorylaseAntineoplastic AgentsGuanineSpectrometry, Mass, Fast Atom Bombardment