Immunogen sequence: MACYIYQLPS WVLDDLCRNM DALSEWDWME FASYVITDLT QLRKIKSMER VQGVSITREL LWWWGMRQAT VQQLVDLLCR LELYRAAQII LNWKPAPEIR CPIPAFPDSV KPEKPLAASV RKAEDEQEEG QPVRMATFPG PGSSPARAHQ PAFLQPPEED APHSLRSDLP TSSDSKDFST SIPKQEKLLS LAGDSLFWSE ADVVQATDDF NQN