Immunogen sequence: CKRMDLVCQR MLNQGFLKVE RYHNLCQKQV KAQLPRRESE RRNHSLARHA DILAAVETRL SLLNMTFMKY VDSNLCCFIP GKVIDEIYRV LRYVNSTRAP QRAHEVLQEL RDISSMAMEY FDEKIVPILK RKLPGSDVSG RLMGSPPVPG PSAALTTMQL FSKQNPSRQE VTKLQQQVKT NGAGVTVLRR EISELRTKVQ EQQKQLQDQD QKL