Immunogen sequence: MAASALRGLP VAGGGESSES EDDGWEIGYL DRTSQKLKRL LPIEEKKEKF KKAMTIGDVS LVQELLDSGI SVDSNFQYGW TPLMYAASVA NAELVRVLLD RGANASFEKD KQSILITACS AHGSEEQILK CVELLLSRNA DPNVACRRLM TPIMYAARDG HTQVVALLVA HGAEVNTQDE NGYTALTWAA RQGHKNIVLK LLELGANKML QTK