Immunogen sequence: GVSMPRGWAA PLLLLLLQGG WGCPDLVCYT DYLQTVICIL EMWNLHPSTL TLTWQDQYEE LKDEATSCSL HRSAHNATHA TYTCHMDVFH FMADDIFSVN ITDQSGNYSQ ECGSFLLAES IKPAPPFNVT VTFSGQYNIS WRSDYEDPAF YMLKGKLQYE LQYRNRGDPW AVSPRRKLIS VDSRSVSLLP LEFRKDSSYE LQVRAGPMPG SSY