Moloney murine leukemia virusLeukemia Virus, MurineVirus DiseasesVirusesLeukemia, ExperimentalFriend murine leukemia virusAKR murine leukemia virusMoloney murine sarcoma virusRNA-Directed DNA PolymeraseRetroviridae InfectionsAbelson murine leukemia virusDNA, ViralRetroviridaeVirus ReplicationSarcoma Viruses, MurineGenes, ViralLeukemia Virus, FelinePreleukemiaGene Products, gagCell LineProvirusesVirus Integration3T3 CellsMink Cell Focus-Inducing VirusesBase SequenceRNA, ViralMolecular Sequence DataRauscher VirusGenetic VectorsRepetitive Sequences, Nucleic AcidRibonuclease HReceptors, VirusLeukemia Virus, BovineTumor Virus InfectionsGammaretrovirusVirionGenes, gagDefective VirusesViral ProteinsGene Products, envViral Envelope ProteinsCell Transformation, ViralRetroviridae Proteins, OncogenicVirus AssemblyLeukemiaIntegrasesMice, Inbred AKRAmino Acid SequenceMice, Inbred StrainsGenes, polRetroviridae ProteinsRecombination, GeneticHelper VirusesGenes, envNucleic Acid HybridizationTransfectionTranscription, GeneticCloning, MolecularDNA, RecombinantRNA VirusesThymus NeoplasmsMutationTerminal Repeat SequencesLymphomaEnhancer Elements, GeneticTransduction, GeneticVirus CultivationGene Expression Regulation, ViralHylobatesAvian myeloblastosis virusLeukemia, Myeloid, AcuteMinkParalysisLeukemia Virus, Gibbon ApePlasmidsThymomaRNA, Transfer, ProDNA Restriction EnzymesVaccinia virusCapsidLymphoma, T-CellSimian virus 40Human T-lymphotropic virus 1HIV-1Antigens, ViralCell Transformation, NeoplasticProto-Oncogene Proteins c-pim-1Cells, CulturedBlotting, SouthernOncogenesGiant CellsSpecies SpecificityViral Plaque AssayRestriction MappingDNA PrimersFusion Proteins, gag-polGenome, ViralMice, Inbred BALB CPolymerase Chain ReactionOncogenic Viruses