Immunogen sequence: SSLPAVVVET FPATVNGTVE GGSGAGRLDL PPGFMFKVQA QHDYTATDTD ELQLKAGDVV LVIPFQNPEE QDEGWLMGVK ESDWNQHKEL EKCRGVFPEN FTERVP. This gene encodes several isoforms of a nucleocytoplasmic adaptor protein, one of which was initially identified as