Immunogen sequence: APAPHRASYK PVIVVHGLFD SSYSFRHLLE YINETHPGTV VTVLDLFDGR ESLRPLWEQV QGFREAVVPI MAKAPQGVHL ICYSQGGLVC RALLSVMDDH NVDSFISLSS PQMGQYGDTD YLKWLFPTSM RSNLYRICYS PWGQEFSICN YWHDPHHDDL YLNASSFLAL INGERDHPNA TVWRKNFLRV GHLVLIGGPD DGVITPWQSS FFG