Immunogen sequence: MENSGKANKK DTHDGPPKEI KLPTSEALLD YQCQIKEDAV EQFMFQIKTL RKKNQKYHER NSRLKEEQIW HIRHLLKELS EEKAEGLPVV TREDVEEAMK EKWKFERDQE KNLRDMRMQI SNAEKLFLEK LSEKEYWEEY KNVGSERHAK LITSLQNDIN TVKENAEKMS EHYKITLEDT RKKIIKETLL QLDQKKEWAT QNAVKLIDKG SYL