Mutagenesis, InsertionalMutagenesisMutagenesis, Site-DirectedRetroviridaeGenetic VectorsMolecular Sequence DataLentivirusInsect VirusesDNA Transposable ElementsAmino Acid SequenceBeesTransduction, GeneticBase SequenceMutationVirus IntegrationGene Transfer TechniquesGreen Fluorescent ProteinsRNA VirusesPlasmidsCloning, MolecularHematopoietic Stem CellsTransformation, GeneticTransposasesVaccinia virusEscherichia coliGenes, BacterialVirus ReplicationSequence Homology, Amino AcidReceptors, VirusBacterial ProteinsBinding SitesGenetic Complementation TestRestriction MappingX-Linked Combined Immunodeficiency DiseasesPhenotypeSequence Analysis, DNADNA PrimersCell LineDNA, BacterialVirus CultivationModels, MolecularVirus SheddingMoloney murine leukemia virusReverse GeneticsSequence AlignmentPolymerase Chain ReactionSimian virus 40Blotting, SouthernVirus AssemblyProvirusesVirus DiseasesRecombinant ProteinsPlant VirusesAgrobacterium tumefaciensRecombination, GeneticDNA VirusesDefective VirusesSindbis VirusChromosome MappingTranscription, GeneticGenetic TechniquesAmino Acid SubstitutionVirulenceMeasles virusRibostamycinInfluenza A Virus, H1N1 SubtypeOpen Reading FramesRabies virusStructure-Activity RelationshipInfluenza A Virus, H5N1 SubtypeGenetic TherapyTransfectionPromoter Regions, GeneticProtein Structure, TertiaryViral ProteinsDNA Mutational AnalysisTerminal Repeat SequencesKineticsProtein BindingRNA, ViralCercopithecus aethiopsGenes, ViralHepatitis B virusWest Nile virusInfluenza A Virus, H3N2 SubtypeRespiratory Syncytial VirusesDNA, ViralStreptothricinsTransformation, BacterialProtein ConformationGenes, FungalPlant DiseasesGene DeletionSequence Homology, Nucleic AcidVirus ActivationTransgenesGammaretrovirusGenetic EngineeringPhylogenyAntigens, Viral