Nuclear Localization SignalsCell Nucleusalpha KaryopherinsActive Transport, Cell Nucleusbeta KaryopherinsKaryopherinsAmino Acid SequenceMolecular Sequence DataCytoplasmNuclear Export SignalsNuclear ProteinsProtein Sorting SignalsRecombinant Fusion ProteinsProtein TransportHeLa CellsGreen Fluorescent ProteinsProtein Structure, TertiaryCOS CellsCell Lineran GTP-Binding ProteinBase SequenceLuminescent ProteinsSubcellular FractionsMutationProtein BindingSequence Homology, Amino AcidSequence DeletionTransfectionDNA-Binding ProteinsCell NucleolusMicroscopy, FluorescenceCell CompartmentationCercopithecus aethiopsTranscription FactorsSignal TransductionBiological TransportAmino Acid MotifsNucleoplasminsBinding SitesCloning, MolecularMutagenesis, Site-DirectedFluorescent Antibody TechniqueRNA-Binding ProteinsMicroscopy, ConfocalNuclear EnvelopePlasmidsPhosphorylationNucleocytoplasmic Transport ProteinsDNA, ComplementaryRNA, MessengerAmino Acids, BasicSequence AlignmentSaccharomyces cerevisiae ProteinsCarrier ProteinsFluorescent Antibody Technique, IndirectViral ProteinsRecombinant ProteinsSaccharomyces cerevisiaeBlotting, WesternZinc FingersTwo-Hybrid System TechniquesDNA PrimersConserved SequenceCells, CulturedProtein Isoformsbeta-GalactosidaseTranscription, GeneticImmunohistochemistry3T3 CellsReceptors, Cytoplasmic and NuclearAntigens, Polyomavirus TransformingMutagenesisGenes, ReporterPhosphoproteinsNuclear PoreTrans-ActivatorsNIH 3T3 CellsTranscriptional ActivationModels, BiologicalMembrane ProteinsFatty Acids, UnsaturatedCell Cycle ProteinsFungal ProteinsGene Expression RegulationDrosophila ProteinsN-Acylneuraminate CytidylyltransferaseRepressor ProteinsImmunoprecipitationNuclear Pore Complex ProteinsAlternative SplicingImmunoblottingDNANuclear MatrixProteinsPlant ProteinsTissue DistributionAT-Hook MotifsTobaccoCell MembraneMicroscopy, Immunoelectron