Leukemia Virus, FelineLeukemia Virus, Gibbon ApeHylobatesLeukemia, FelineCatsCat DiseasesLeukemia Virus, MurineSarcoma Virus, Woolly MonkeyReceptors, VirusRetroviridaeRetroviridae InfectionsSarcoma Viruses, FelineMoloney murine leukemia virusFeline Acquired Immunodeficiency SyndromeImmunodeficiency Virus, FelineLeukemia, ExperimentalLeukemia Virus, BovineLeukemiaTumor Virus InfectionsAKR murine leukemia virusRauscher VirusHominidaeCell LineProvirusesLynxViral Envelope ProteinsMolecular Sequence DataDNA, ViralGammaretrovirusFriend murine leukemia virusBase SequenceOncogenic VirusesPumaGenes, ViralRetroviridae Proteins, OncogenicAntigens, ViralLeukemia, Myeloid, AcuteLionsSodium-Phosphate Cotransporter Proteins, Type IIIAmino Acid SequenceVirus ReplicationGenes, envFeline panleukopenia virusRepetitive Sequences, Nucleic AcidRNA, ViralTerminal Repeat SequencesGene Products, envDefective VirusesHylobatidaeViral ProteinsFelisHuman T-lymphotropic virus 1Retroviridae ProteinsMinkRetroviruses, SimianGenetic VectorsThymus NeoplasmsFeline PanleukopeniaCalicivirus, FelineGene Products, gagCoronavirus, FelinePhosphate Transport ProteinsSpecies SpecificityAntibodies, ViralGenes, polViral InterferenceLymphomaHelper VirusesVirus IntegrationAbelson murine leukemia virusCell Transformation, ViralLeukemia, Lymphocytic, Chronic, B-Cell3T3 CellsRNA-Directed DNA PolymeraseCloning, MolecularRecombination, GeneticRNA VirusesLeukemia, LymphoidGene Products, taxPolymerase Chain ReactionRed-Cell Aplasia, PureCricetinaeSodium-Phosphate Cotransporter ProteinsNucleic Acid HybridizationEndogenous RetrovirusesApe DiseasesVirus CultivationVaccinia virusNeutralization TestsCytopathogenic Effect, ViralEnzootic Bovine LeukosisFeline Infectious PeritonitisLeukemia, Myelogenous, Chronic, BCR-ABL PositiveSequence Homology, Nucleic AcidVirus AssemblyAnimals, WildIris NeoplasmsChimeraLeukemia, T-Cell