AKR murine leukemia virusLeukemia Virus, MurineMice, Inbred AKRMoloney murine leukemia virusFriend murine leukemia virusLeukemia, ExperimentalAbelson murine leukemia virusThymus GlandLeukemia Virus, FelineRauscher VirusRetroviridae InfectionsLeukemia Virus, BovineLeukemiaRetroviridaeCell LineVirus ReplicationMink Cell Focus-Inducing VirusesDNA, ViralGenes, ViralRNA-Directed DNA PolymeraseReceptors, VirusMolecular Sequence DataProvirusesGene Products, gagBase SequenceTumor Virus InfectionsGammaretrovirusMice, Inbred StrainsLeukemia, Myeloid, AcuteVirus IntegrationLeukemia Virus, Gibbon ApeRNA, Viral