GuanosinePyrimidine NucleotidesPyrimidinesNucleosidesPurine NucleotidesPyrimidine NucleosidesPyrimidine DimersNucleotidesOrotic AcidUridine TriphosphateGuanineOrotate PhosphoribosyltransferaseUracil NucleotidesDihydroorotaseUridine MonophosphateAspartate CarbamoyltransferaseUridineOrotidine-5'-Phosphate DecarboxylaseCarbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing)Purine NucleosidesUridine KinaseGuanine NucleotidesUracilCytidineCytidine TriphosphatePentosyltransferasesDihydroorotate OxidaseCytosine NucleotidesPurinesNucleoside Transport ProteinsRibonucleotidesMolecular Sequence DataUridine DiphosphateKinetics5'-Nucleotidase3-DeazauridinePyrimidine PhosphorylasesGuanine Nucleotide Exchange FactorsNucleotide Transport ProteinsBase SequencePhosphoribosyl PyrophosphateEscherichia coliPhosphonoacetic AcidAdenosine TriphosphateDNACarbamoyl-Phosphate Synthase (Ammonia)Deoxyribonuclease (Pyrimidine Dimer)Guanosine TriphosphateSubstrate SpecificityDeoxycytidine MonophosphateEquilibrative Nucleoside Transporter 1NucleotidasesAmino Acid SequenceUltraviolet RaysNucleic Acid ConformationOrganomercury CompoundsThymidineOxidoreductases Acting on CH-CH Group DonorsPhosphotransferasesUridine Phosphorylaseortho-AminobenzoatesThioinosineRibonucleosidesDeoxyribonucleosidesPurine-Nucleoside PhosphorylaseAdenine NucleotidesDeoxyribodipyrimidine Photo-LyaseReceptors, Purinergic P2Structure-Activity RelationshipAdenineModels, MolecularAspartic AcidInosineBinding SitesAdenosine DiphosphateCell LineMutationRNAThymineDNA RepairDeoxyuridineCytosineGuanine DeaminaseNucleoside-Diphosphate KinaseCloning, MolecularAdenosinePolymorphism, Single NucleotideFormycinsOligonucleotidesThymine NucleotidesCatalytic DomainGuanosine DiphosphatePurine-Pyrimidine Metabolism, Inborn ErrorsCells, CulturedNucleoside QEquilibrative-Nucleoside Transporter 2Molecular StructureDeoxyadenosinesOligodeoxyribonucleotidesDNA Damage