AKR murine leukemia virusLeukemia Virus, MurineMice, Inbred AKRMoloney murine leukemia virusAvian Sarcoma VirusesSarcoma Viruses, MurineFriend murine leukemia virusLeukemia, ExperimentalGenes, ViralHelper VirusesKirsten murine sarcoma virusAlpharetrovirusHarvey murine sarcoma virusAbelson murine leukemia virusXenotropic murine leukemia virus-related virusRetroviridae InfectionsCell Transformation, ViralDNA, ViralRNA, ViralGammaretrovirusSarcomaRNA-Directed DNA PolymeraseRauscher VirusLeukemia Virus, FelineRetroviridaeBase SequenceVirus ReplicationCell LineLeukemia Virus, BovineViral ProteinsReceptors, VirusMink Cell Focus-Inducing VirusesMolecular Sequence DataGenome, ViralSarcoma Viruses, FelineNucleic Acid HybridizationDefective VirusesMinkLeukemiaGene Products, gagMoloney murine sarcoma virusTumor Virus InfectionsRous sarcoma virusRNA VirusesProvirusesMice, Inbred StrainsVirus IntegrationVirus CultivationRecombination, GeneticRepetitive Sequences, Nucleic AcidOncogenic VirusesVirus AssemblyAmino Acid SequenceGenomeSarcoma, ExperimentalAntigens, ViralCell Transformation, NeoplasticVirionSarcoma, AvianGenetic VectorsVaccinia virusGene Products, envSpecies SpecificityLeukemia, Myeloid, AcuteViral Envelope ProteinsLeukemia Virus, Gibbon ApeAvian leukosis virus