Moloney murine leukemia virusLeukemia Virus, MurineLeukemia, ExperimentalAKR murine leukemia virusFriend murine leukemia virusMoloney murine sarcoma virusRNA-Directed DNA PolymeraseRetroviridae InfectionsAbelson murine leukemia virusDNA, ViralRetroviridaeSarcoma Viruses, MurinePreleukemiaGene Products, gagLeukemia Virus, FelineGenes, ViralCell LineProvirusesVirus ReplicationBase Sequence3T3 CellsVirus IntegrationMink Cell Focus-Inducing VirusesRauscher VirusMolecular Sequence DataRNA, ViralRibonuclease HRepetitive Sequences, Nucleic AcidGenetic VectorsLeukemia Virus, BovineGammaretrovirusTumor Virus InfectionsGenes, gagVirionReceptors, VirusGene Products, envViral Envelope ProteinsRetroviridae Proteins, OncogenicLeukemiaViral ProteinsCell Transformation, ViralDefective VirusesIntegrasesMice, Inbred AKRAmino Acid SequenceMice, Inbred StrainsRetroviridae ProteinsGenes, polHelper VirusesGenes, envRecombination, GeneticNucleic Acid HybridizationCloning, MolecularTranscription, GeneticVirus AssemblyTransfectionMutationDNA, RecombinantThymus NeoplasmsTerminal Repeat SequencesLymphomaEnhancer Elements, GeneticTransduction, GeneticHylobatesLeukemia, Myeloid, AcuteParalysisMinkThymomaRNA, Transfer, ProLeukemia Virus, Gibbon ApeAvian myeloblastosis virusGene Expression Regulation, ViralPlasmidsDNA Restriction EnzymesLymphoma, T-CellProto-Oncogene Proteins c-pim-1Blotting, SouthernCells, CulturedCell Transformation, NeoplasticOncogenesHuman T-lymphotropic virus 1HIV-1CapsidRestriction MappingGiant CellsMice, Inbred BALB CGenome, ViralDNA PrimersSpecies SpecificityFusion Proteins, gag-polNIH 3T3 CellsDNA NucleotidyltransferasesPolymerase Chain ReactionChimeraProto-OncogenesVirus CultivationBinding SitesLeukemia, Erythroblastic, AcuteAntigens, ViralTemplates, Genetic