Nucleic AcidsCarbocysteinePyrimidinesPurinesDNA, B-FormAdenineXanthopterinUracilPyrimidine NucleotidesGuanineCytosinePyrimidine DimersBase PairingHydrogen BondingThymineNucleic Acid ConformationPeptide Nucleic AcidsPyrimidine NucleosidesDNAPolynucleotidesBase SequenceThermodynamicsSpectrophotometry, UltravioletAcid-Base EquilibriumAcid-Base ImbalanceModels, MolecularMagnetic Resonance SpectroscopyWaterNucleic Acid DenaturationNucleic Acid ProbesMolecular Sequence DataRNADeoxyribonuclease (Pyrimidine Dimer)Nucleic Acid Amplification TechniquesHydrogen-Ion ConcentrationOrotic AcidNucleic Acid HybridizationPyrimidine PhosphorylasesKineticsOligonucleotidesUltraviolet RaysCatalysisUridineOrotate PhosphoribosyltransferaseAlkalosisEscherichia coliBinding SitesAmino Acid SequenceAcidosisDeoxyribodipyrimidine Photo-LyaseDihydroorotaseBase CompositionAlkaliesBicarbonatesPurine NucleotidesNucleosidesMolecular StructureCytidineDNA, BacterialSubstrate SpecificityCrystallography, X-RayAspartate CarbamoyltransferaseAlkalosis, RespiratoryCarbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing)MutationOrotidine-5'-Phosphate DecarboxylaseUridine PhosphorylaseNucleotidesDNA RepairEducation, VeterinarySodium BicarbonateUracil NucleotidesModels, ChemicalStructure-Activity RelationshipHypermediaOligodeoxyribonucleotidesSkull BaseDihydroorotate OxidasePurine NucleosidesCatalytic DomainDeoxyribonucleosidesUridine MonophosphateAcidsSchiff BasesUridine KinasePentosyltransferasesMolecular ConformationGasesDeoxyuridineTemperatureProtein BindingUridine TriphosphateHistidineBiocatalysisProtonsDNA, ViralDNA, Single-StrandedNucleic Acid HeteroduplexesRNA, ViralBase Pair Mismatch