Nuclear Localization SignalsCell NucleusActive Transport, Cell Nucleusalpha KaryopherinsLigandsAmino Acid SequenceMolecular Sequence DataKaryopherinsbeta KaryopherinsProtein BindingCytoplasmRecombinant Fusion ProteinsProtein Sorting SignalsNuclear Export SignalsNuclear ProteinsBinding SitesProtein Structure, TertiaryCell LineProtein TransportHeLa CellsGreen Fluorescent ProteinsCOS CellsMutationSignal TransductionBase SequenceLuminescent ProteinsModels, Molecularran GTP-Binding ProteinTransfectionSequence Homology, Amino AcidSequence DeletionDNA-Binding ProteinsSubcellular FractionsCell NucleolusTranscription FactorsNucleoplasminsRecombinant ProteinsCell CompartmentationCercopithecus aethiopsProteinsBiological TransportAmino Acid MotifsMicroscopy, FluorescenceProtein ConformationCarrier ProteinsCloning, MolecularMutagenesis, Site-DirectedCells, CulturedNuclear EnvelopeMicroscopy, ConfocalRNA-Binding ProteinsPhosphorylationFluorescent Antibody TechniquePeptidesMembrane ProteinsAmino Acids, BasicCrystallography, X-RayDNA, ComplementarySequence AlignmentKineticsPlasmidsZinc FingersRNA, MessengerReceptors, Cytoplasmic and NuclearViral ProteinsBlotting, WesternConserved SequenceDNA PrimersFluorescent Antibody Technique, Indirectbeta-GalactosidaseTwo-Hybrid System TechniquesNucleocytoplasmic Transport ProteinsPeptide LibraryTranscription, Genetic3T3 CellsSaccharomyces cerevisiae ProteinsSaccharomyces cerevisiaeProtein IsoformsMutagenesisGenes, ReporterPeptide FragmentsTumor Necrosis FactorsNuclear PoreBinding, CompetitivePhosphoproteinsTranscriptional ActivationTrans-ActivatorsAntigens, Polyomavirus TransformingNIH 3T3 CellsModels, BiologicalImmunohistochemistryFatty Acids, UnsaturatedN-Acylneuraminate CytidylyltransferaseGene Expression RegulationDimerizationStructure-Activity RelationshipRepressor ProteinsDNANuclear Pore Complex ProteinsAT-Hook Motifs