AKR murine leukemia virusLeukemia Virus, MurineMoloney murine leukemia virusMice, Inbred AKRLeukemia, ExperimentalBuxusFriend murine leukemia virusAbelson murine leukemia virusLeukemia Virus, FelineRauscher VirusRetroviridae InfectionsVirus ReplicationLeukemia Virus, BovineReceptors, VirusGenes, ViralMolecular Sequence DataCell LineRNA VirusesDNA, ViralRetroviridaeLeukemiaRNA-Directed DNA PolymeraseDefective VirusesRNA, ViralMoloney murine sarcoma virusSarcoma Viruses, MurineTumor Virus InfectionsMink Cell Focus-Inducing VirusesVirus AssemblyVaccinia virusVirus CultivationGene Products, gagViral ProteinsGammaretrovirusVirus IntegrationProvirusesAmino Acid SequenceBase SequenceVirionCell Transformation, ViralMice, Inbred StrainsGenetic VectorsSimian virus 40Antigens, Viral3T3 CellsVirus SheddingPreleukemiaRepetitive Sequences, Nucleic AcidHuman T-lymphotropic virus 1Leukemia, Myeloid, AcuteLeukemia Virus, Gibbon ApeGene Products, envMinkVirus DiseasesOncogenic Viruses