Sarcoma Viruses, FelineProto-Oncogene Proteins B-rafras ProteinsLeukemia Virus, FelineOncogene Protein gp140(v-fms)SarcomaMutationRetroviridaeGenes, rasOncogenic VirusesCatsOncogenesMinkMelanomaProto-Oncogene ProteinsCell Transformation, ViralCat DiseasesImmunodeficiency Virus, FelineOncogene Proteins, ViralHelper VirusesSarcoma, EwingFeline Acquired Immunodeficiency SyndromeSarcoma, SynovialSarcoma, KaposiCell Transformation, NeoplasticGenes, ViralCalicivirus, FelineCoronavirus, FelineAvian Sarcoma VirusesRetroviridae ProteinsCell LineSarcoma, ExperimentalSarcoma 180Viral ProteinsFeline PanleukopeniaSarcoma Viruses, MurineFeline Infectious PeritonitisGene Products, gagBase SequenceFeline panleukopenia virusDNA, ViralNucleic Acid HybridizationPapillomavirus E7 ProteinsProtein-Tyrosine KinasesSarcoma, AvianSoft Tissue NeoplasmsLeukemia, FelineAntigens, ViralCell Line, TumorProtein KinasesOncogene ProteinsHistiocytic SarcomaGenesTyrosineMolecular Weight