Immunogen sequence: DSNRVVLRSG KDDYINASCV EGLSPYCPPL VATQAPLPGT AADFWLMVHE QKVSVIVMLV SEAEMEKQKV ARYFPTERGQ PMVHGALSLA LSSVRSTETH VERVLSLQFR DQSLKRSLVH LHFPTWPELG LPDSPSNLLR FIQEVHAHYL HQRPLHTPII VHCSSGVGRT GAFALLYAAV QEVEAGNGIP ELPQLVRRMR QQRKHMLQEK LHL