Nuclear Localization SignalsCell NucleusActive Transport, Cell Nucleusalpha KaryopherinsAmino Acid SequenceMolecular Sequence DataKaryopherinsbeta KaryopherinsNuclear Export SignalsCytoplasmProtein Sorting SignalsNuclear ProteinsRecombinant Fusion ProteinsProtein TransportHeLa CellsGreen Fluorescent ProteinsProtein Structure, TertiaryCOS CellsCell LineLuminescent ProteinsBase SequenceMutationran GTP-Binding ProteinSequence Homology, Amino AcidSequence DeletionProtein BindingTransfectionDNA-Binding ProteinsSubcellular FractionsBiological TransportCell NucleolusNucleocytoplasmic Transport ProteinsSignal TransductionCell CompartmentationTranscription FactorsNucleoplasminsCercopithecus aethiopsMicroscopy, FluorescenceAmino Acid MotifsRNA-Binding ProteinsCloning, MolecularBinding SitesMutagenesis, Site-DirectedNuclear EnvelopeReceptors, Cytoplasmic and NuclearMicroscopy, ConfocalPlasmidsCarrier ProteinsPhosphorylationFluorescent Antibody TechniqueRNA, MessengerAmino Acids, BasicNuclear PoreSaccharomyces cerevisiae ProteinsSequence AlignmentZinc FingersRecombinant ProteinsDNA, ComplementaryNuclear Pore Complex ProteinsSaccharomyces cerevisiaeViral ProteinsConserved SequenceFluorescent Antibody Technique, IndirectTwo-Hybrid System TechniquesDNA Primersbeta-GalactosidaseBlotting, WesternTranscription, GeneticFatty Acids, Unsaturated3T3 CellsCells, CulturedMutagenesisProtein IsoformsGenes, ReporterPhosphoproteinsTrans-ActivatorsNIH 3T3 CellsRNA TransportTranscriptional ActivationModels, BiologicalAntigens, Polyomavirus TransformingFungal ProteinsN-Acylneuraminate CytidylyltransferaseImmunohistochemistryRepressor ProteinsCell Cycle ProteinsGene Expression RegulationImmunoprecipitationMembrane ProteinsAT-Hook MotifsNuclear MatrixDimerizationRibonucleoproteinsAlternative SplicingDNAPlant ProteinsCytosolImmunoblottingDrosophila ProteinsGene Products, rev