Immunogen sequence: MEALLEGIQN RGHGGGFLTS CEAELQELMK QIDIMVAHKK SEWEGRTHAL ETCLKIREQE LKSLRSQLDV THKEVGMLHQ QVEEHEKIKQ EMTMEYKQEL KKLHEELCIL KRSYEKLQKK QMREFRGNTK NHREDRSEIE RLTAKIEEFR QKSLDWEKQR LIYQQQVSSL EAQRKALAEQ SEIIQAQLVN RKQKLESVEL SSQSEIQHLS SKL