Nuclear Localization SignalsCell Nucleusalpha KaryopherinsActive Transport, Cell NucleusAmino Acid SequenceKaryopherinsMolecular Sequence Databeta KaryopherinsNuclear ProteinsRecombinant Fusion ProteinsCytoplasmran GTP-Binding ProteinProtein TransportHeLa CellsGreen Fluorescent ProteinsNuclear EnvelopeCell NucleolusSubcellular FractionsProtein BindingBiological TransportAntigens, Polyomavirus TransformingProtein Structure, TertiaryCell LineProtein Sorting SignalsSequence Homology, Amino AcidMicroscopy, FluorescenceCell CompartmentationNucleocytoplasmic Transport ProteinsBase SequenceMutationNuclear Export SignalsLuminescent ProteinsTransfectionFluorescent Antibody TechniqueTranscription FactorsNuclear Pore Complex ProteinsBinding SitesDNA-Binding ProteinsMicroscopy, ConfocalSaccharomyces cerevisiae ProteinsAmino Acid MotifsSequence DeletionMutagenesis, Site-DirectedCOS CellsCarrier ProteinsRNA-Binding ProteinsSaccharomyces cerevisiaeCloning, MolecularPhosphorylationFungal ProteinsRecombinant ProteinsCytosolRNA, MessengerCells, CulturedProtein IsoformsAntigens, Viral, TumorSequence AlignmentDNA PrimersPlasmidsDNA, ComplementaryParathyroid Hormone-Related Protein3T3 CellsCercopithecus aethiopsMembrane ProteinsPeptidesCell Cycle Proteinsbeta-GalactosidasePhosphoproteinsImmunoprecipitationDimerizationCasein Kinase IIGlutathione TransferasePeptide FragmentsTranscription, GeneticSound LocalizationBlotting, WesternModels, BiologicalProtein-Serine-Threonine KinasesSignal TransductionStructure-Activity RelationshipKineticsProteinsXenopusTumor Cells, CulturedImmunohistochemistryXenopus laevisRepressor ProteinsGenes, ReporterI-kappa B ProteinsPoint MutationSerineCell Line, TumorCell MembraneMicroscopy, ImmunoelectronTrans-ActivatorsReceptors, Cytoplasmic and NuclearCell CycleNF-kappa BModels, MolecularDNA