Immunogen sequence: MNNFGNEEFD CHFLDEGFTA KDILDQKINE VSSSDDKDAF YVADLGDILK KHLRWLKALP RVTPFYAVKC NDSKAIVKTL AATGTGFDCA SKTEIQLVQS LGVPPERIIY ANPCKQVSQI KYAANNGVQM MTFDSEVELM KVARAHPKAK LVLRIATDDS KAVCRLSVKF GATLRTSRLL LERAKELNID VVGVSFHVGS GCTDPETFVQ AIS