PolyomavirusPolyomavirus InfectionsAntigens, Polyomavirus TransformingMerkel cell polyomavirusAntigensBK VirusAntigens, Viral, TumorJC VirusDNA, ViralCarcinoma, Merkel CellTumor Virus InfectionsAntigens, BacterialAntigens, NeoplasmAntigens, ViralMolecular Sequence DataCell LineAntigens, SurfaceBase SequenceMerkel CellsCapsid ProteinsViral ProteinsMutationPlasmidsReplication Protein ARNA, ViralDNA-Binding ProteinsGenome, ViralSimian virus 40Amino Acid SequenceAntigens, ProtozoanProliferating Cell Nuclear AntigenGene Expression Regulation, ViralLeukoencephalopathy, Progressive MultifocalGenes, ViralHLA AntigensCells, CulturedDNA Replication TimingCell Transformation, ViralTranscription, GeneticAntigens, CDPolyomaviridaeAntigens, FungalRepliconAntigens, HelminthCapsidH-2 AntigensEscherichia coliReplication Protein CDNADNA HelicasesTransfectionHeLa CellsAntibodies, MonoclonalPolymerase Chain ReactionRecombination, GeneticProtein BindingDNA ReplicationCarcinoembryonic AntigenVirus ReplicationS PhaseMice, Inbred BALB CCloning, MolecularAntibodies, ViralHIV-1Binding SitesT-LymphocytesEnhancer Elements, GeneticHLA-DR AntigensCell NucleusReceptors, Antigen, T-CellEpitopesOncogene Proteins, ViralAntiviral AgentsGenetic VectorsCell Cycle ProteinsCross ReactionsHistocompatibility AntigensFluorescent Antibody TechniqueVirionEnzyme-Linked Immunosorbent AssayNuclear ProteinsDNA-Directed DNA PolymeraseHistocompatibility Antigens Class IIViral Regulatory and Accessory ProteinsRecombinant ProteinsPromoter Regions, GeneticProstate-Specific AntigenReceptors, Antigen, B-CellDNA PrimaseDNA PrimersBacterial ProteinsO Antigens3T3 CellsVirus AssemblyCell CycleImmunoglobulin GViral Structural ProteinsUrineViral Nonstructural ProteinsRestriction Mapping