Pyrimidine NucleotidesNucleotide Transport ProteinsMitochondrial ADP, ATP TranslocasesPurine NucleotidesPyrimidinesNucleotidesUridine TriphosphateOrotic AcidOrotate PhosphoribosyltransferaseUracil NucleotidesDihydroorotasePyrimidine NucleosidesUridine MonophosphateAspartate CarbamoyltransferasePyrimidine DimersOrotidine-5'-Phosphate DecarboxylaseCarbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing)Uridine KinaseUridineCytidine TriphosphateUracilDihydroorotate OxidaseUridine DiphosphateRibonucleotides3-DeazauridinePentosyltransferasesMolecular Sequence Data5'-NucleotidaseCarbamoyl-Phosphate Synthase (Ammonia)Phosphonoacetic AcidPhosphoribosyl PyrophosphatePurinesKineticsAdenosine TriphosphateDeoxycytidine MonophosphateOrganomercury CompoundsGuanine NucleotidesEscherichia coliBase Sequenceortho-AminobenzoatesNucleosidesAmino Acid SequenceOxidoreductases Acting on CH-CH Group DonorsSubstrate SpecificityNucleotidasesReceptors, Purinergic P2DNACarrier StateAspartic AcidNucleic Acid ConformationPolymorphism, Single NucleotideGuanosine TriphosphatePhosphotransferasesAdenosine DiphosphateAdenine NucleotidesDeoxyribonuclease (Pyrimidine Dimer)ThymidinePyrimidine PhosphorylasesUltraviolet RaysModels, MolecularStructure-Activity RelationshipBinding SitesMutationRNACell LineCloning, MolecularDrug CarriersCarrier ProteinsCatalytic DomainDeoxyribodipyrimidine Photo-LyaseDNA Repair