AKR murine leukemia virusLeukemia Virus, MurineMice, Inbred AKRMoloney murine leukemia virusFriend murine leukemia virusLeukemia, ExperimentalAbelson murine leukemia virusLeukemia Virus, FelineRauscher VirusRetroviridae InfectionsLeukemia Virus, BovineViral Envelope ProteinsCell LineLeukemiaMolecular Sequence DataRetroviridaeVirus ReplicationReceptors, VirusDNA, ViralMink Cell Focus-Inducing VirusesGenes, ViralGene Products, envRNA-Directed DNA PolymeraseBase SequenceGene Products, gagProvirusesGammaretrovirusAmino Acid SequenceViral ProteinsTumor Virus InfectionsLeukemia, Myeloid, AcuteMice, Inbred StrainsRNA, ViralLeukemia Virus, Gibbon ApeVirus Integration