Immunogen sequence: MATASPRSDT SNNHSGRLQL QVTVSSAKLK RKKNWFGTAI YTEVVVDGEI TKTAKSSSSS NPKWDEQLTV NVTPQTTLEF QVWSHRTLKA DALLGKATID LKQALLIHNR KLERVKEQLK LSLENKNGIA QTGELTVVLD GLVIEQENIT NCSSSPTIEI QENGDALHEN GEPSARTTAR LAVEGTNGID NHVPTSTLVQ NSCCSYVVNG DNT