AKR murine leukemia virusLeukemia Virus, MurineMice, Inbred AKRXenotropic murine leukemia virus-related virusMoloney murine leukemia virusMinkMink Cell Focus-Inducing VirusesRetroviridae InfectionsFriend murine leukemia virusLeukemia, ExperimentalGammaretrovirusAbelson murine leukemia virusRetroviridaeRauscher VirusLeukemia Virus, FelineFatigue Syndrome, ChronicDNA ContaminationDNA, ViralGenes, ViralCell LineTumor Virus InfectionsLeukemia Virus, BovineVirus ReplicationMice, Inbred StrainsReceptors, VirusBase SequenceMolecular Sequence DataLeukemiaVirus IntegrationProvirusesSarcoma Viruses, MurineViral Envelope ProteinsHelper VirusesRNA-Directed DNA PolymeraseRecombination, GeneticViral ProteinsRNA, ViralPreleukemiaGene Products, gagRepetitive Sequences, Nucleic AcidCell Transformation, ViralAmino Acid SequenceDefective VirusesAleutian Mink DiseaseLeukemia, Myeloid, AcuteLymphomaMuridaeLeukemia Virus, Gibbon Ape