NucleosidesPurine NucleosidesPyrimidine NucleosidesNucleoside Transport ProteinsArabinonucleosidesAntiviral AgentsReverse Transcriptase InhibitorsZidovudineEquilibrative Nucleoside Transporter 1DioxolanesZalcitabineDeoxycytidine KinaseDideoxynucleosidesDideoxynucleotidesCytidineGuanosineHIV Reverse TranscriptaseCladribineAnti-HIV AgentsDeoxyribonucleosidesRibonucleosidesStavudineUridineThioinosineThymine NucleotidesArabinofuranosyluracilTubercidinAcyclovirLamivudineThymidine KinaseInosineDidanosineAdenineOrganophosphonatesNucleotidesPurine-Nucleoside PhosphorylaseAdenosineDeoxycytidineDeoxyuridineKineticsDrug Resistance, ViralDeoxyadenosinesGanciclovirThymidineCytosineGuanineHIV-1PurinesEquilibrative-Nucleoside Transporter 2Nucleoside-Diphosphate Kinase2-AminopurineStructure-Activity RelationshipCytarabineAntimetabolites, AntineoplasticMolecular StructureFormycinsVidarabineProdrugsThionucleosidesToyocamycinUridine PhosphorylaseSubstrate SpecificityDideoxyadenosineMolecular Sequence DataAdenine NucleotidesNucleoside QEquilibrative Nucleoside Transport ProteinsAcidosis, LacticStereoisomerismAdenosine KinaseVirus ReplicationNucleoside-TriphosphataseMutationArabinofuranosylcytosine TriphosphateAntineoplastic AgentsHeterocyclic Compounds, 2-RingMethylthioinosineCytidine TriphosphatePentostatinAdenosine Deaminase InhibitorsDeoxyguanine NucleotidesHIV InfectionsBase SequenceXanthopterinGuanine DeaminasePentosyltransferasesRNA-Directed DNA PolymeraseAdenosylhomocysteinaseDeoxyguanosineCell LineInhibitory Concentration 50DNA-Directed DNA PolymeraseModels, MolecularDrug Resistance, MicrobialNM23 Nucleoside Diphosphate KinasesIdoxuridineHepatitis B virusAdenosine TriphosphateArabinonucleotides5'-Nucleotidase