Nucleobase Transport ProteinsNucleosidesCytosine DeaminaseUracilNucleoside Transport ProteinsBase PairingPeptide Nucleic AcidsPurinesGuanineAdenineThymineEvolution, ChemicalHypoxanthineDNACytosineNucleic AcidsDeoxyriboseThioinosineCytidineThiouracilDNA-Cytosine MethylasesPyrimidine NucleosidesNucleic Acid ConformationEquilibrative Nucleoside Transporter 15-MethylcytosinePurine NucleosidesOligonucleotidesEquilibrative-Nucleoside Transporter 2GuanosineUridineDeaminationXanthineMeteoroidsCytarabineBase SequenceRNA, CatalyticInosineOligodeoxyribonucleotidesExtraterrestrial EnvironmentFlucytosinePurine NucleotidesMolecular StructureNucleotidesHydrogen BondingDeoxyribonucleosidesRNAPyrimidinesHypoxanthinesDNA MethylationModels, MolecularNucleoside DeaminasesSulfitesNucleic Acid DenaturationKineticsSubstrate SpecificitySpectrometry, Mass, Electrospray IonizationMolecular Sequence DataDeoxyadenosinesModels, ChemicalOrganophosphorus CompoundsCytosine NucleotidesElectronsDNA (Cytosine-5-)-MethyltransferaseThermodynamicsStatic ElectricityAdenosineDNA-Directed DNA PolymeraseHydrophobic and Hydrophilic InteractionsDNA DamageChromatography, High Pressure LiquidThymidineBiological TransportMethylationTemperatureHydrogen-Ion ConcentrationCatalysisCpG IslandsProdrugsCytidine DeaminaseBinding SitesMass SpectrometryStructure-Activity RelationshipUracil-DNA GlycosidaseCrystallography, X-RayBase CompositionEpigenesis, GeneticThymine DNA GlycosylaseDeoxyribonuclease HpaIIAzacitidineDNA GlycosylasesEscherichia coliN-Glycosyl HydrolasesDaunorubicinDeoxycytosine NucleotidesDeoxyribonucleases, Type II Site-SpecificArabinofuranosylcytosine TriphosphateMutationAntimetabolitesPentoxylCytidine Triphosphate