Immunogen sequence: MPTTIEREFE ELDTQRRWQP LYLEIRNESH DYPHRVAKFP ENRNRNRYRD VSPYDHSRVK LQNAENDYIN ASLVDIEEAQ RSYILTQGPL PNTCCHFWLM VWQQKTKAVV MLNRIVEKES VKCAQYWPTD DQEMLFKETG FSVKLLSEDV KSYYTVHLLQ LENINSGETR TISHFHYTTW PDFGVPESPA SFLNFLFKVR ESGSLNPDHG PAV