Abelson murine leukemia virusLeukemia Virus, MurineOncogene Proteins v-ablMoloney murine leukemia virusCell Transformation, ViralLeukemia, ExperimentalAKR murine leukemia virusFriend murine leukemia virusGenes, ablThymomaCell Transformation, NeoplasticHelper VirusesCell LineOncogenesGenes, ViralLeukemia Virus, FelineViral ProteinsSarcoma Viruses, FelineRauscher VirusB-LymphocytesMice, Inbred StrainsRetroviridae InfectionsLeukemia Virus, BovineCell Line, TransformedBase SequenceDNA, ViralMice, Inbred BALB CProtein-Tyrosine KinasesLeukemiaDefective VirusesRetroviridaeMice, Inbred AKRMutationLymphocytesVirus ReplicationClone CellsProtein KinasesLymphomaMink Cell Focus-Inducing VirusesRNA-Directed DNA PolymeraseReceptors, VirusMolecular Sequence DataProvirusesGene Products, gagTumor Virus InfectionsGammaretrovirusLeukemia, Myeloid, AcuteVirus IntegrationLeukemia Virus, Gibbon ApeRNA, Viral3T3 CellsNucleic Acid HybridizationCloning, MolecularViral Envelope ProteinsMinkImmunoglobulin mu-ChainsBlotting, SouthernDNA Restriction EnzymesPreleukemiaHuman T-lymphotropic virus 1Gene Rearrangement, B-Lymphocyte, Heavy ChainPlasmacytomaPhosphorylationGene Products, envRetroviridae Proteins, OncogenicTransfectionRepetitive Sequences, Nucleic AcidGenetic VectorsGenesSarcoma Viruses, MurineAmino Acid SequenceVirionVirus Assembly