AKR murine leukemia virusLeukemia Virus, MurineMice, Inbred AKRMoloney murine leukemia virusAvian Sarcoma VirusesSarcoma Viruses, MurineFriend murine leukemia virusKirsten murine sarcoma virusGenes, ViralLeukemia, ExperimentalAlpharetrovirusHarvey murine sarcoma virusHelper VirusesAbelson murine leukemia virusCell Transformation, ViralRNA, ViralDNA, ViralSarcomaLeukemia Virus, FelineRNA-Directed DNA PolymeraseBase SequenceRauscher VirusVirus ReplicationRetroviridae InfectionsCell LineLeukemia Virus, BovineRetroviridaeGammaretrovirusMolecular Sequence DataViral ProteinsGenome, ViralSarcoma Viruses, FelineDefective VirusesReceptors, VirusLeukemiaNucleic Acid HybridizationMoloney murine sarcoma virusGene Products, gagAntigens, ViralRous sarcoma virusRNA VirusesMink Cell Focus-Inducing VirusesTumor Virus InfectionsVirus IntegrationProvirusesAmino Acid SequenceVirus AssemblySarcoma, ExperimentalAntigensGenomeRepetitive Sequences, Nucleic AcidVirus CultivationMice, Inbred StrainsOncogenic VirusesGenetic VectorsVirionRecombination, GeneticVaccinia virusSarcoma, AvianCell Transformation, NeoplasticMinkLeukemia, Myeloid, AcuteViral Envelope ProteinsLeukemia Virus, Gibbon ApeAvian leukosis virus3T3 CellsRetroviridae Proteins