Leukemia Virus, MurineAvian Sarcoma VirusesMoloney murine leukemia virusRous sarcoma virusAKR murine leukemia virusFriend murine leukemia virusSarcoma Viruses, MurineCell Transformation, ViralSarcoma, AvianLeukemia, ExperimentalAbelson murine leukemia virusOncogene Protein pp60(v-src)SarcomaLeukemia Virus, FelineGenes, ViralChick EmbryoRauscher VirusGene Products, gagVirus ReplicationRetroviridaeCell LineRNA, ViralRNA-Directed DNA PolymeraseDNA, ViralRetroviridae InfectionsViral ProteinsLeukemia Virus, BovineDefective VirusesRetroviridae ProteinsCell Transformation, NeoplasticBase SequenceGammaretrovirusMolecular Sequence DataAvian leukosis virusAlpharetrovirusReceptors, VirusSarcoma Viruses, FelineKirsten murine sarcoma virusLeukemiaMoloney murine sarcoma virusSarcoma, ExperimentalMice, Inbred AKRVirus AssemblyHelper VirusesGenes, gagVirus IntegrationVirionProvirusesOncogenic VirusesRepetitive Sequences, Nucleic AcidMink Cell Focus-Inducing VirusesVirus CultivationTumor Virus InfectionsRNA VirusesAmino Acid SequenceGenetic VectorsCells, CulturedFibroblastsQuailNucleic Acid HybridizationMutationOncogenesHarvey murine sarcoma virusViral Envelope ProteinsAvian myeloblastosis virusRecombination, GeneticTransfectionMice, Inbred StrainsMinkLeukemia, Myeloid, Acute3T3 CellsAntigens, ViralGene Products, envLeukemia Virus, Gibbon ApeVaccinia virusCulture TechniquesCloning, MolecularSimian virus 40Retroviridae Proteins, OncogenicHuman T-lymphotropic virus 1Transcription, GeneticGene Expression Regulation, ViralChickensTemperatureMolecular WeightSarcoma, EwingPreleukemiaSpecies SpecificityPlasmidsTerminal Repeat SequencesSarcoma Virus, Woolly MonkeySarcoma, KaposiDNA Restriction EnzymesGenes, srcDNA, RecombinantSarcoma, SynovialGenes, envLymphomaRibonuclease HViral Interference