Nuclear Localization SignalsCell NucleusActive Transport, Cell Nucleusalpha KaryopherinsAmino Acid SequenceMolecular Sequence DataKaryopherinsbeta KaryopherinsPeptidesCytoplasmProtein Sorting SignalsNuclear Export SignalsNuclear ProteinsRecombinant Fusion ProteinsProtein TransportHeLa CellsGreen Fluorescent ProteinsProtein Structure, TertiaryCell LineCOS CellsBase SequenceProtein BindingLuminescent ProteinsSequence Homology, Amino Acidran GTP-Binding ProteinMutationSequence DeletionTransfectionDNA-Binding ProteinsSubcellular FractionsSignal TransductionCell NucleolusTranscription FactorsCell CompartmentationNucleoplasminsCercopithecus aethiopsAmino Acid MotifsBiological TransportBinding SitesMicroscopy, FluorescenceCloning, MolecularPeptide FragmentsMutagenesis, Site-DirectedRecombinant ProteinsNuclear EnvelopeMicroscopy, ConfocalPhosphorylationRNA-Binding ProteinsSequence AlignmentDNA, ComplementaryFluorescent Antibody TechniqueAmino Acids, BasicPlasmidsCarrier ProteinsZinc FingersRNA, MessengerViral ProteinsCells, CulturedConserved SequenceBlotting, WesternDNA PrimersFluorescent Antibody Technique, Indirectbeta-GalactosidaseTranscription, GeneticSaccharomyces cerevisiaeTwo-Hybrid System TechniquesNucleocytoplasmic Transport ProteinsSaccharomyces cerevisiae Proteins3T3 CellsReceptors, Cytoplasmic and NuclearProtein IsoformsMutagenesisPeptide MappingGenes, ReporterNuclear PorePhosphoproteinsStructure-Activity RelationshipPeptide LibraryAntigens, Polyomavirus TransformingTranscriptional ActivationTrans-ActivatorsImmunohistochemistryNIH 3T3 CellsModels, BiologicalProteinsFatty Acids, UnsaturatedDNAN-Acylneuraminate CytidylyltransferaseGene Expression RegulationModels, MolecularDimerizationFungal ProteinsPlant ProteinsMembrane ProteinsRepressor ProteinsNuclear Pore Complex ProteinsAT-Hook MotifsCell Cycle ProteinsTumor Cells, CulturedImmunoprecipitation