Immunogen sequence: RPHGDTAKKP IIGILMQKCR NKVMKNYGRY YIAASYVKYL ESAGARVVPV RLDLTEKDYE ILFKSINGIL FPGGSVDLRR SDYAKVAKIF YNLSIQSFDD GDYFPVWGTC LGFEELSLLI SGECLLTATD TVDVAMPLNF TGGQLHSRMF QNFPTELLLS LAVEPLTANF HKWSLSVKNF TMNEKLKKFF NVLTTNTDGK IEFIST; Positi