AntimetabolitesNucleosidesAntimetabolites, AntineoplasticPurine NucleosidesTetrahydrouridinePyrimidine NucleosidesNucleoside Transport ProteinsFloxuridineTrabeculectomyBiosynthetic Pathways6-MercaptopurineFluorouracilEquilibrative Nucleoside Transporter 1MethotrexateSurgical SpongesMitomycinCytarabineLeukemia L1210DeoxycytidineInosine MonophosphateThioguanineVidarabine PhosphateThioinosinePhosphoribosyl PyrophosphatePurine-Nucleoside PhosphorylasePurines6-AminonicotinamideAntineoplastic AgentsGuanosineNucleoside-Diphosphate KinasePantothenic AcidUridineInosineNucleoside QDrug SynergismNorleucineFolic Acid AntagonistsTumor Cells, CulturedStreptomycesKineticsGuanineEquilibrative-Nucleoside Transporter 2Nucleoside-TriphosphataseCell SurvivalNeoplasmsRibonucleosidesCytidineNucleotidesCell DivisionCell LineAdenosinePentosyltransferasesFormycinsPhosphonoacetic AcidNM23 Nucleoside Diphosphate KinasesThymidylate SynthaseMolecular Sequence DataReverse Transcriptase InhibitorsEquilibrative Nucleoside Transport ProteinsDrug Screening Assays, AntitumorAzathioprineDeoxyribonucleosidesDeoxyadenosinesAdenineDrug Evaluation, PreclinicalSubstrate SpecificityMolecular StructureDilazepEscherichia coliAmino Acid SequenceDideoxynucleosidesTubercidinMutationZidovudineArabinonucleosidesAntiviral AgentsCell CycleDeoxycytidine KinaseRibonucleotidesBase SequenceOrganophosphonatesPyrimidine PhosphorylasesThymidineThionucleosidesThymine NucleotidesDeoxyuridineZalcitabineUridine PhosphorylaseAnti-HIV AgentsAdenosine TriphosphateCloning, MolecularDipyridamoleHIV Reverse TranscriptaseBiological TransportChromatography, High Pressure LiquidPhosphotransferasesAcid Anhydride HydrolasesThiouridinePurine NucleotidesDideoxynucleotides