Nucleobase Transport ProteinsHypoxanthineNucleosidesPurinesEquilibrative-Nucleoside Transporter 2Peptide Nucleic AcidsBase PairingAdenineGuanineNucleoside Transport ProteinsThioinosineEquilibrative Nucleoside Transporter 1DilazepHypoxanthinesPurine NucleosidesNucleic Acid ConformationUracilOligonucleotidesCytosineDeoxyribonucleosidesNucleic AcidsNucleobase, Nucleoside, Nucleotide, and Nucleic Acid Transport ProteinsHydrogen BondingNucleic Acid DenaturationPropiolactoneBromouracilDNAThymineFramycetinModels, MolecularPurine NucleotidesNucleotidesPyrimidine NucleosidesPyrimidine NucleotidesRNA, CatalyticGuanosineDipyridamolePyrimidinesMolecular StructureNucleic Acid ProbesOligodeoxyribonucleotidesBorates2-AminopurineKineticsDeoxyuridineRibonucleosidesMembrane Transport ProteinsBiocatalysisDeoxyguanosineUridineBase SequenceTransition TemperatureBiological TransportAntimetabolitesRNADNA-Directed DNA PolymeraseInosineSubstrate SpecificityAllopurinolTrypanosoma brucei bruceiBase Pair MismatchCrystallography, X-RayMolecular Sequence DataMolecular ProbesAdenosineSpectrometry, Mass, Electrospray IonizationHydrogen-Ion ConcentrationDNA GlycosylasesBinding SitesFluorescent DyesStructure-Activity RelationshipSpectrometry, FluorescenceThymidineModels, ChemicalThermodynamicsHydrophobic and Hydrophilic InteractionsStereoisomerismDNA DamageRNA, Double-StrandedCationsChromatography, High Pressure LiquidTemperatureCatalysisCatalytic DomainIndicators and ReagentsMolecular ConformationCarrier ProteinsStatic ElectricityTritiumDNA ReplicationSodiumProtein BindingAmino Acid SequenceOocytesLigandsBiological Transport, ActiveDNA RepairMutationMagnetic Resonance SpectroscopySequence Alignment