Nuclear Localization SignalsCell NucleusActive Transport, Cell Nucleusalpha KaryopherinsMolecular Sequence DataAmino Acid SequenceKaryopherinsbeta KaryopherinsCytoplasmProtein Sorting SignalsNuclear ProteinsNuclear Export SignalsRecombinant Fusion ProteinsProtein TransportGreen Fluorescent ProteinsHeLa CellsProtein Structure, TertiaryCell LineCOS CellsLuminescent ProteinsBase SequenceSubcellular Fractionsran GTP-Binding ProteinMutationSequence Homology, Amino AcidProtein BindingTransfectionSequence DeletionDNA-Binding ProteinsCell NucleolusCell CompartmentationSignal TransductionMicroscopy, FluorescenceTranscription FactorsCercopithecus aethiopsNucleoplasminsBiological TransportAmino Acid MotifsCloning, MolecularBinding SitesFluorescent Antibody TechniqueMicroscopy, ConfocalMutagenesis, Site-DirectedNuclear EnvelopeRNA-Binding ProteinsPhosphorylationDNA, ComplementaryRNA, MessengerAmino Acids, BasicPlasmidsSequence AlignmentCarrier ProteinsFluorescent Antibody Technique, IndirectRecombinant ProteinsBlotting, WesternZinc FingersTwo-Hybrid System TechniquesViral ProteinsDNA PrimersConserved SequenceSaccharomyces cerevisiae ProteinsCells, CulturedSaccharomyces cerevisiaeProtein Isoformsbeta-GalactosidaseTranscription, GeneticImmunohistochemistryNucleocytoplasmic Transport Proteins3T3 CellsReceptors, Cytoplasmic and NuclearMutagenesisGenes, ReporterPhosphoproteinsNuclear PoreTrans-ActivatorsNIH 3T3 CellsTranscriptional ActivationModels, BiologicalAntigens, Polyomavirus TransformingMembrane ProteinsFatty Acids, UnsaturatedCell Cycle ProteinsFungal ProteinsGene Expression RegulationDrosophila ProteinsN-Acylneuraminate CytidylyltransferaseRepressor ProteinsImmunoprecipitationNuclear Pore Complex ProteinsAlternative SplicingImmunoblottingDNANuclear MatrixProteinsPlant ProteinsTissue DistributionAT-Hook MotifsCell MembraneMicroscopy, ImmunoelectronDimerization