Immunogen sequence: HGITQANELV NLTEFFVNHI LPDLKSANVN EFPVLKADGI KYIMIFRNQV PKEHLLVSIP LLINHLQAES IVVHTYAAHA LERLFTMRGP NNATLF. Proteins that carry a nuclear localization signal (NLS) are transported into the nucleus by the importin-alpha/beta heterodimer