AKR murine leukemia virusLeukemia Virus, MurineMice, Inbred AKRAvian Sarcoma VirusesMoloney murine leukemia virusRous sarcoma virusFriend murine leukemia virusSarcoma Viruses, MurineCell Transformation, ViralLeukemia, ExperimentalSarcoma, AvianAbelson murine leukemia virusOncogene Protein pp60(v-src)SarcomaLeukemia Virus, FelineGenes, ViralChick EmbryoVirus ReplicationCell LineGene Products, gagRauscher VirusRNA, ViralDNA, ViralRetroviridaeRNA-Directed DNA PolymeraseViral ProteinsRetroviridae InfectionsDefective VirusesLeukemia Virus, BovineRetroviridae ProteinsBase SequenceMolecular Sequence DataCell Transformation, NeoplasticGammaretrovirusReceptors, VirusAvian leukosis virusAlpharetrovirusSarcoma Viruses, FelineKirsten murine sarcoma virusVirionLeukemiaVirus AssemblyMoloney murine sarcoma virusSarcoma, ExperimentalHelper VirusesGenes, gagVirus IntegrationProvirusesVirus CultivationAmino Acid SequenceOncogenic VirusesMink Cell Focus-Inducing VirusesRepetitive Sequences, Nucleic AcidRNA VirusesTumor Virus InfectionsCells, CulturedGenetic VectorsViral Envelope ProteinsMutationFibroblastsQuailNucleic Acid HybridizationOncogenesHarvey murine sarcoma virusRecombination, GeneticMice, Inbred StrainsTransfectionAntigens, ViralAvian myeloblastosis virusGene Products, envMink3T3 CellsLeukemia, Myeloid, AcuteLeukemia Virus, Gibbon ApeCloning, MolecularCulture TechniquesVaccinia virus