Moloney murine leukemia virusMoloney murine sarcoma virusGenes, polSarcoma Viruses, MurineMolecular Sequence DataBase SequenceGene Products, polAmino Acid SequenceCloning, MolecularGenes, ViralMutationLeukemia, ExperimentalCell LineTranscription, GeneticDNA, ViralLeukemia Virus, MurineRNA-Directed DNA PolymeraseEscherichia coliPlasmidsViral ProteinsGammaretrovirusGene Products, gagRetroviridaeGenes, BacterialRepetitive Sequences, Nucleic AcidRNA, ViralGenetic VectorsSarcoma, ExperimentalRestriction MappingVirus ReplicationRetroviridae InfectionsGenesCell Transformation, ViralSequence Homology, Amino Acid3T3 CellsBacterial ProteinsDNA-Directed DNA PolymeraseBiological ProductsGenes, gagRNA, MessengerPreleukemiaHelper VirusesProvirusesTransfectionSaccharomyces cerevisiaeRauscher VirusGenetic Complementation TestDNA-Binding ProteinsRecombination, GeneticDNA PrimersRetroviridae ProteinsFriend murine leukemia virusNucleic Acid HybridizationDNADNA, RecombinantMolecular WeightKineticsTranscription FactorsVirus IntegrationRibonuclease HGene Expression RegulationDefective VirusesMutagenesisRNA Polymerase IIPolymerase Chain ReactionRecombinant ProteinsSequence Homology, Nucleic AcidDNA Polymerase betaDNA ReplicationVirionRecombinant Fusion ProteinsGene ExpressionProtein BiosynthesisDNA Polymerase IIIOpen Reading FramesTemperatureDNA Restriction EnzymesGenes, RegulatorPhenotypeSequence AlignmentPromoter Regions, GeneticGenes, FungalBinding SitesMink Cell Focus-Inducing VirusesMethisazoneCells, CulturedGene Products, envOncogenesViral Envelope ProteinsGene Expression Regulation, ViralCell Transformation, NeoplasticSubstrate SpecificityBlotting, SouthernOperonSequence Analysis, DNAChromosome MappingAKR murine leukemia virusProtein BindingMutagenesis, InsertionalTumor Virus Infections