Thymine NucleotidesMegaloblastsThymineAnemia, MegaloblasticLeukemia, LymphoidMethotrexateNucleotidesThymine DNA GlycosylaseMolecular Sequence DataBase SequenceDNADNA, ViralEscherichia coliMutationAmino Acid SequenceCell LineNucleic Acid ConformationRNA, ViralPlasmidsReplication Protein APolymorphism, Single NucleotideUracilViral ProteinsDNA-Binding ProteinsPyrimidine DimersDNA, BacterialDNA RepairAdenine NucleotidesCloning, MolecularGenome, ViralBromouracilDNA Replication TimingTranscription, GeneticDeoxyribonuclease (Pyrimidine Dimer)DNA DamageDNA-Directed DNA PolymeraseDNA HelicasesRepliconGuanine NucleotidesKineticsCytosineUltraviolet RaysThymidineBinding SitesPentoxylReplication Protein CPurine NucleotidesSequence Analysis, DNAProtein BindingHeLa CellsOsmium TetroxideEndodeoxyribonucleasesBacterial ProteinsDNA, Single-StrandedOligodeoxyribonucleotidesAdenineHIV-1S PhaseRecombination, GeneticGenes, ViralGuanineGene Expression Regulation, ViralDNA PrimersOligonucleotidesSequence Homology, Nucleic AcidTemplates, GeneticRestriction MappingPyrimidine NucleotidesChromosomes, BacterialSaccharomyces cerevisiaeBase PairingDNA Restriction EnzymesCell Cycle ProteinsBase CompositionPotassium PermanganatePolymerase Chain ReactionModels, MolecularRNA, MessengerGenes, BacterialViral Nonstructural ProteinsSequence AlignmentMutagenesisGenesEscherichia coli ProteinsGuanine Nucleotide Exchange FactorsSequence Homology, Amino AcidAntiviral AgentsCells, CulturedAdenosine TriphosphatePromoter Regions, GeneticSubstrate SpecificityDNA, FungalGenotypeNucleotides, CyclicModels, GeneticPhylogenyBase Pair MismatchSaccharomyces cerevisiae ProteinsRNARepetitive Sequences, Nucleic Acid