Immunogen sequence: MEHAFTPLEP LLSTGNLKYC LVILNQPLDN YFRHLWNKAL LRACADGGAN RLYDITEGER ESFLPEFING DFDSIRPEVR EYYATKGCEL ISTPDQDHTD FTKCLKMLQK KIEEKDLKVD VIVTLGGLAG RFDQIMASVN TLFQATHITP FPIIIIQEES LIYLLQPGKH RLHVDTGMEG DWCGLIPVGQ PCMQVTTTGL KWNLTNDVLA FGT