Nuclear Localization SignalsNuclear PoreNuclear Pore Complex ProteinsCell NucleusActive Transport, Cell Nucleusalpha KaryopherinsKaryopherinsbeta KaryopherinsAmino Acid SequenceMolecular Sequence DataNuclear EnvelopeCytoplasmNuclear Proteinsran GTP-Binding ProteinProtein Sorting SignalsNuclear Export SignalsRecombinant Fusion ProteinsHeLa CellsGreen Fluorescent ProteinsProtein TransportNucleocytoplasmic Transport ProteinsProtein Structure, TertiaryCell LineLuminescent ProteinsCOS CellsProtein BindingBase SequenceSequence Homology, Amino AcidMutationNucleoplasminsBiological TransportSequence DeletionTransfectionCell NucleolusDNA-Binding ProteinsMicroscopy, FluorescenceCell CompartmentationSubcellular FractionsSignal TransductionTranscription FactorsCercopithecus aethiopsAmino Acid MotifsSaccharomyces cerevisiae ProteinsCloning, MolecularBinding SitesRNA-Binding ProteinsSaccharomyces cerevisiaeMutagenesis, Site-DirectedFluorescent Antibody TechniqueMicroscopy, ConfocalReceptors, Cytoplasmic and NuclearRecombinant ProteinsCarrier ProteinsRNA, MessengerPlasmidsSequence AlignmentDNA, ComplementaryPhosphorylationZinc FingersFluorescent Antibody Technique, IndirectAmino Acids, BasicTwo-Hybrid System TechniquesConserved SequenceViral ProteinsRNA TransportBlotting, WesternTranscription, GeneticModels, BiologicalDNA PrimersXenopusFungal ProteinsCells, CulturedMutagenesis3T3 Cellsbeta-GalactosidaseGenes, ReporterWheat Germ AgglutininsMembrane ProteinsProtein IsoformsPhosphoproteinsMicroscopy, ImmunoelectronLaminsRibonucleoproteinsTrans-ActivatorsFatty Acids, UnsaturatedAntigens, Polyomavirus TransformingImmunohistochemistryTranscriptional ActivationXenopus laevisNIH 3T3 CellsDimerizationCell Cycle ProteinsMitosisOocytesDNAN-Acylneuraminate CytidylyltransferaseRepressor ProteinsModels, MolecularStructure-Activity RelationshipImmunoblotting