Avian leukosis virusAvian LeukosisAvian Sarcoma VirusesAlpharetrovirusSarcoma, AvianSarcomaAvian ProteinsChickensChick EmbryoReceptors, VirusQuailBursa of FabriciusCell Transformation, ViralReticuloendotheliosis virusGenes, ViralSarcoma, EwingDefective VirusesEnzootic Bovine LeukosisDNA, ViralPoultry DiseasesRNA, ViralVirus ReplicationSarcoma, KaposiSarcoma, SynovialSarcoma, ExperimentalAvian myeloblastosis virusCoturnixViral ProteinsMolecular Sequence DataCell LineRNA-Directed DNA PolymeraseBase SequenceCell Transformation, NeoplasticRetroviridae ProteinsRetroviridaeGenes, gagVirus IntegrationRNA VirusesSarcoma 180Culture TechniquesAmino Acid SequenceHelper VirusesSarcoma Viruses, MurineGene Products, gagGene Products, envRecombination, GeneticAntigens, ViralRepetitive Sequences, Nucleic AcidGenes, polVaccinia virusOncogenesNucleic Acid HybridizationOncogene Protein pp60(v-src)FibroblastsProvirusesGenes, envViral Envelope ProteinsVirus CultivationViral Fusion ProteinsMembrane FusionVirionCells, CulturedMarek DiseaseViral InterferenceHistiocytic SarcomaDucksCytopathogenic Effect, ViralGenetic VectorsHerpesvirus 2, GallidHemangiomaSpecies SpecificityLeukemia Virus, BovineVirus SheddingLymphomaSimian virus 40Endogenous RetrovirusesVirus DiseasesBirdsCell FusionVirus AssemblyDNA Restriction EnzymesPlant VirusesSoft Tissue NeoplasmsIntegrasesDNA VirusesCloning, MolecularMutationTranscription, GeneticSindbis VirusGlycoproteinsMeasles virusInfluenza A Virus, H1N1 SubtypeOncogene Protein v-crkTenosynovitisRabies virusInfluenza A Virus, H5N1 SubtypeSequence Analysis, DNAMolecular WeightViral TropismSarcoma, Myeloid