AKR murine leukemia virusLeukemia Virus, MurineMice, Inbred AKRMoloney murine leukemia virusMutagenesis, InsertionalBuxusFriend murine leukemia virusLeukemia, ExperimentalAbelson murine leukemia virusLeukemia Virus, FelineMolecular Sequence DataRauscher VirusRetroviridae InfectionsRetroviridaeLeukemia Virus, BovineVirus ReplicationCell LineAmino Acid SequenceVirus IntegrationReceptors, VirusBase SequenceMutagenesisLeukemiaDNA, ViralGenes, ViralProvirusesGenetic VectorsMink Cell Focus-Inducing VirusesRNA-Directed DNA PolymeraseGammaretrovirusMutagenesis, Site-DirectedRNA VirusesTumor Virus InfectionsRNA, ViralGene Products, gagDefective VirusesViral ProteinsVirus AssemblyMice, Inbred StrainsLeukemia, Myeloid, AcuteVirus CultivationDNA Transposable ElementsLeukemia Virus, Gibbon ApeMutationCell Transformation, ViralCloning, MolecularRecombination, Genetic