Nuclear Localization SignalsCell Nucleusalpha KaryopherinsActive Transport, Cell Nucleusbeta KaryopherinsKaryopherinsAmino Acid SequenceMolecular Sequence DataCytoplasmNuclear Export SignalsProtein Sorting SignalsNuclear ProteinsRecombinant Fusion ProteinsHeLa CellsProtein TransportGreen Fluorescent ProteinsProtein Structure, TertiaryCOS CellsCell Lineran GTP-Binding ProteinBase SequenceLuminescent ProteinsSequence DeletionSequence Homology, Amino AcidMutationProtein BindingTransfectionDNA-Binding ProteinsSubcellular FractionsCell NucleolusTranscription FactorsCercopithecus aethiopsNucleoplasminsSignal TransductionBiological TransportCell CompartmentationAmino Acid MotifsMicroscopy, FluorescenceBinding SitesMutagenesis, Site-DirectedCloning, MolecularRNA-Binding ProteinsNuclear EnvelopeNucleocytoplasmic Transport ProteinsMicroscopy, ConfocalPlasmidsAmino Acids, BasicFluorescent Antibody TechniquePhosphorylationZinc FingersViral ProteinsDNA, ComplementarySequence AlignmentRecombinant ProteinsSaccharomyces cerevisiae ProteinsSaccharomyces cerevisiaeFluorescent Antibody Technique, IndirectCarrier Proteinsbeta-GalactosidaseConserved SequenceTwo-Hybrid System TechniquesRNA, MessengerAntigens, Polyomavirus TransformingDNA PrimersBlotting, WesternReceptors, Cytoplasmic and Nuclear3T3 CellsTranscription, GeneticCells, CulturedProtein IsoformsNuclear PoreMutagenesisGenes, ReporterPhosphoproteinsTranscriptional ActivationTrans-ActivatorsNIH 3T3 CellsFatty Acids, UnsaturatedN-Acylneuraminate CytidylyltransferaseImmunohistochemistryModels, BiologicalAT-Hook MotifsNuclear Pore Complex ProteinsRepressor ProteinsFungal ProteinsNuclear MatrixCell Cycle ProteinsGene Expression RegulationTobaccoAlternative SplicingDNAImmunoprecipitationCapsid ProteinsDimerizationPlant ProteinsDrosophila ProteinsPoint MutationCell CycleGene Products, vprImmunoblotting