AKR murine leukemia virusLeukemia Virus, MurineMice, Inbred AKRMoloney murine leukemia virusPolyomavirusMammary Tumor Virus, MouseFriend murine leukemia virusLeukemia, ExperimentalAbelson murine leukemia virusRauscher VirusLeukemia Virus, FelineRetroviridae InfectionsLeukemia Virus, BovineCell LineTumor Virus InfectionsVirus ReplicationRetroviridaeDNA, ViralGenes, ViralReceptors, VirusLeukemiaMolecular Sequence DataCell Line, TumorRNA-Directed DNA PolymeraseBase SequenceRNA VirusesRNA, ViralMink Cell Focus-Inducing VirusesProvirusesGammaretrovirusOncogenic VirusesViral ProteinsMice, Inbred StrainsGene Products, gagDefective VirusesVirus IntegrationCell Transformation, ViralGenetic VectorsVirus AssemblyVirus CultivationRepetitive Sequences, Nucleic AcidLeukemia, Myeloid, AcuteTumor Cells, CulturedAmino Acid SequenceAntigens, ViralLeukemia Virus, Gibbon ApeVaccinia virusVirionLymphoma