Polymorphism, GeneticPolymorphism, Single NucleotidePolymerase Chain ReactionProtein ConformationMolecular Sequence DataDNA-Directed DNA PolymeraseRNA Polymerase IIModels, MolecularGene FrequencyAllelesGenetic Predisposition to DiseaseBase SequenceAmino Acid SequencePolymorphism, Single-Stranded ConformationalDNA-Directed RNA PolymerasesProtein BindingBinding SitesHaplotypesMutationCase-Control StudiesDNA Polymerase IGenotypeProtein Structure, TertiaryKineticsDNA Polymerase IIDNA Polymerase IIIDNAProtein Structure, SecondaryCrystallography, X-RayEscherichia coliCircular DichroismMolecular ConformationTranscription, GeneticRNA Polymerase IGenetic VariationRNA Polymerase IIIDNA Polymerase betaPromoter Regions, GeneticThermodynamicsGenetic Association StudiesDNA PrimersAsian Continental Ancestry GroupNucleic Acid ConformationLinkage DisequilibriumSequence Analysis, DNAAmino Acid SubstitutionSpectrometry, FluorescenceTemplates, GeneticProtein FoldingTemperaturePhenotypeStructure-Activity RelationshipMolecular Dynamics SimulationMagnetic Resonance SpectroscopyGenetic MarkersRecombinant ProteinsHomozygoteNuclear Magnetic Resonance, BiomolecularDNA Mutational AnalysisLigandsBacterial ProteinsMutagenesis, Site-DirectedProtein DenaturationModels, ChemicalDNA, BacterialHydrogen-Ion ConcentrationRisk FactorsReverse Transcriptase Polymerase Chain ReactionPoint MutationExonsRNA ReplicaseSequence AlignmentCloning, MolecularRNA-Directed DNA PolymeraseCell LineCatalytic DomainHydrogen BondingChinaSequence Homology, Amino AcidDNA-Binding ProteinsComputer SimulationHeterozygoteProtein Structure, QuaternaryRNA, MessengerMethylenetetrahydrofolate Reductase (NADPH2)CattleAmplified Fragment Length Polymorphism AnalysisSubstrate SpecificityEuropean Continental Ancestry GroupDNA, ViralNucleotidesDNA ReplicationMacromolecular SubstancesPhylogenyChromosome MappingCatalysisPoly(ADP-ribose) PolymerasesDimerizationProteinsEscherichia coli Proteins