alpha Karyopherinsbeta KaryopherinsKaryopherinsNuclear Localization Signalsran GTP-Binding ProteinActive Transport, Cell NucleusNucleoplasminsCell NucleusHypoxia-Inducible Factor 1, alpha SubunitCellular Apoptosis Susceptibility ProteinNuclear ProteinsProtein BindingMolecular Sequence DataAmino Acid SequenceNuclear Pore Complex ProteinsHeLa CellsNuclear EnvelopeProtein TransportRecombinant Fusion ProteinsTranscription FactorsHypoxia-Inducible Factor 1Nucleocytoplasmic Transport Proteins