Nuclear Localization SignalsCell NucleusActive Transport, Cell Nucleusalpha KaryopherinsMolecular Sequence DataAmino Acid SequenceKaryopherinsbeta KaryopherinsCytoplasmProtein Sorting SignalsNuclear Export SignalsNuclear ProteinsRecombinant Fusion ProteinsCell LineHeLa CellsProtein TransportGreen Fluorescent ProteinsProtein Structure, TertiaryCOS CellsBase SequenceLuminescent Proteinsran GTP-Binding ProteinTransfectionMutationSequence DeletionDNA-Binding ProteinsSequence Homology, Amino AcidProtein BindingCell NucleolusSubcellular FractionsSignal TransductionTranscription FactorsNucleoplasminsCell CompartmentationCercopithecus aethiopsBiological TransportMicroscopy, FluorescenceCloning, MolecularAmino Acid MotifsBinding SitesMutagenesis, Site-DirectedPlasmidsFluorescent Antibody TechniqueNuclear EnvelopeRNA-Binding ProteinsMicroscopy, ConfocalPhosphorylationAmino Acids, BasicViral ProteinsDNA, ComplementaryCells, CulturedRecombinant ProteinsRNA, MessengerZinc FingersTranscription, GeneticSequence Alignment3T3 CellsCarrier ProteinsDNA PrimersConserved SequenceFluorescent Antibody Technique, IndirectBlotting, Westernbeta-GalactosidaseTwo-Hybrid System TechniquesNucleocytoplasmic Transport ProteinsSaccharomyces cerevisiaeReceptors, Cytoplasmic and NuclearSaccharomyces cerevisiae ProteinsAntigens, Polyomavirus TransformingProtein IsoformsMutagenesisGenes, ReporterNIH 3T3 CellsNuclear PoreDNAPhosphoproteinsTranscriptional ActivationGene Expression RegulationTrans-ActivatorsSimian virus 40Fatty Acids, UnsaturatedN-Acylneuraminate CytidylyltransferaseModels, BiologicalImmunohistochemistryRepressor ProteinsCell Cycle ProteinsAT-Hook MotifsNuclear Pore Complex ProteinsCricetinaeAlternative SplicingFungal ProteinsNuclear MatrixTumor Cells, CulturedImmunoprecipitationCell CycleDimerizationProteinsPlant ProteinsVirus ReplicationPoint Mutation