Immunogen sequence: RTHSLRYFRL GVSDPIHGVP EFISVGYVDS HPITTYDSVT RQKEPRAPWM AENLAPDHWE RYTQLLRGWQ QMFKVELKRL QRHYNHSGSH TYQRMIGCEL LEDGSTTGFL QYAYDGQDFL IFNKDTLSWL AVDNVAHTIK QAWEANQHEL LYQKNWLEEE CIAWLKRFLE YGKDTLQRTE PPLVRVNRKE TFPGVTALFC KAHGFYPPEI YMT