Leukemia Virus, MurineMoloney murine leukemia virusLeukemia Virus, FelineLeukemia Virus, BovineLeukemiaFriend murine leukemia virusLeukemia, ExperimentalAKR murine leukemia virusLeukemia, Myeloid, AcuteHuman T-lymphotropic virus 1Molecular Sequence DataProtein SubunitsCell LineAbelson murine leukemia virusVirus ReplicationReceptors, VirusLeukemia Virus, Gibbon ApeLeukemia, Lymphocytic, Chronic, B-CellRauscher VirusRNA VirusesRetroviridaeGene Products, taxRetroviridae InfectionsLeukemia, LymphoidGenes, ViralAmino Acid SequenceDNA, ViralBase SequenceVaccinia virusDefective VirusesVirus CultivationEnzootic Bovine LeukosisRNA, ViralViral ProteinsLeukemia, Myelogenous, Chronic, BCR-ABL PositiveVirus AssemblyProvirusesTumor Virus InfectionsLeukemia, T-CellRNA-Directed DNA PolymeraseGammaretrovirusCell Transformation, ViralMice, Inbred AKRGene Products, gagAntigens, ViralSimian virus 40Virus IntegrationVirus SheddingSarcoma Viruses, MurineRetroviridae Proteins, OncogenicVirus DiseasesLeukemia-Lymphoma, Adult T-CellVirionOncogenic VirusesGenetic VectorsHuman T-lymphotropic virus 2TransfectionCells, CulturedDeltaretrovirusRepetitive Sequences, Nucleic AcidPrecursor Cell Lymphoblastic Leukemia-LymphomaGene Expression Regulation, ViralMice, Inbred StrainsRadiation Leukemia VirusPlant VirusesTranscription, GeneticDNA VirusesGene Products, envSindbis VirusHylobatesAvian leukosis virusMink Cell Focus-Inducing VirusesT-LymphocytesRNA, MessengerLeukemia, FelineMeasles virusPolymerase Chain ReactionHTLV-I InfectionsCloning, MolecularInfluenza A Virus, H1N1 SubtypeLymphomaGene Products, rexLeukemia, Monocytic, AcuteViral Envelope ProteinsMutationSpecies SpecificityPreleukemiaRecombination, GeneticRabies virusLeukemia, Radiation-InducedLeukemia, Hairy CellMice, Inbred C57BLMolecular WeightGenes, pXBinding SitesInfluenza A Virus, H5N1 SubtypeTerminal Repeat Sequences3T3 CellsCatsRecombinant Proteins