Immunogen sequence: MAMRQTPLTC SGHTRPVVDL AFSGITPYGY FLISACKDGK PMLRQGDTGD WIGTFLGHKG AVWGATLNKD ATKAATAAAD FTAKVWDAVS GDELMTLAHK HIVKTVDFTQ DSNYLLTGGQ DKLLRIYDLN KPEAEPKEIS GHTSGIKKAL WCSEDKQILS ADDKTVRLWD HATMTEVKSL NFNMSVSSME YIPEGEILVI TYGRSIAFHS AVS