Immunogen sequence: TKPSSSLSIG SIISKSPLAS PAPQSTSFFS PSFSLGLGDD SFPIAGIYDT TTDNKCSIKT AVAKNMLDPI TGQKLLEAQA ATGGIVDLLS RERYSVHKAM ERGLIENTST QRLLNAQKAF TGIEDPVTKK RLSVGEAVQK GWMPRESVLP HLQVQHLTGG LIDPKRTGRI PIQQALLSGM ISEELAQLLQ DESSYEKDLT DPISKERLSY KEA