Immunogen sequence: MGLLDLCEEV FGTADLYRVL GVRREASDGE VRRGYHKVSL QVHPDRVGEG DKEDATRRFQ ILGKVYSVLS DREQRAVYDE QGTVDEDSPV LTQDRDWEAY WRLLFKKISL EDIQAFEKTY KGSEEELADI KQAYLDFKGD MDQIMESVLC VQYTEEPRIR NIIQQAIDAG EVPSYNAFVK ESKQKMNARK RRAQEEAKEA EMSRKELGLD EGV