DNA HelicasesAmino AcidsSequence Homology, Amino AcidRNA HelicasesAmino Acid SequenceDEAD-box RNA HelicasesAmino Acid SubstitutionCloning, MolecularAdenosine TriphosphatasesMolecular Sequence DataEscherichia coliBase SequenceDnaB HelicasesMutationAmino Acid MotifsSequence AlignmentAmino Acids, EssentialDNAProtein Structure, TertiaryBinding SitesAmino Acid Transport SystemsDNA, Single-StrandedProtein BindingKineticsSubstrate SpecificityModels, MolecularMutagenesis, Site-DirectedDNA ReplicationRecombinant ProteinsRNA NucleotidyltransferasesBacterial ProteinsProtein ConformationDNA-Binding ProteinsDNA, ComplementaryNucleoside-TriphosphataseWerner SyndromeSequence Homology, Nucleic AcidEscherichia coli ProteinsDNA PrimasePeptide FragmentsStructure-Activity RelationshipCell LineAmino Acids, AromaticSaccharomyces cerevisiaeViral ProteinsAmino Acids, Branched-ChainLeucineAmino Acids, SulfurConserved SequenceExodeoxyribonucleasesHydrolysisAdenosine TriphosphateMolecular WeightBacteriophage T7Recombinant Fusion ProteinsRestriction MappingSaccharomyces cerevisiae ProteinsViral Nonstructural ProteinsRNA, MessengerDNA PrimersElectrophoresis, Polyacrylamide GelPeptidesPhylogenySequence Analysis, DNAProtein Structure, SecondaryProteinsAlanineRNAOpen Reading FramesCarrier ProteinsSequence DeletionBacteriophage T4DNA, BacterialLysineGenes, BacterialAmino Acids, BasicMutagenesisSpecies SpecificityProtein BiosynthesisNucleic Acid ConformationHeLa CellsTranscription, GeneticPoint MutationAmino Acid Transport Systems, BasicPlasmidsChromatography, High Pressure LiquidIsoleucineCattleCodonTrypsinBiological TransportSequence AnalysisGenetic Complementation TestEukaryotic Initiation Factor-4APolymerase Chain ReactionGlycineFungal ProteinsDNA RepairCatalysisMacromolecular Substances