Immunogen sequence: HKCILKPLKG HVEAMLKDFH MADGSWKQLK ENLQLVRQRN PQELGVFAPT PDFVDVEKIK VKFMTMQKMY SPEKKVMLLL RVCKLIYTVM ENNSGRMYGA DDFLPVLTYV IAQCDMLELD TEIEYMMELL DPSLLHGEGG YYLTSAYGAL SLIKNFQEEQ AARLLSSETR DTLRQWHKRR TTNRTIPSVD DFQNYLRVAF QEVNSGCTGK TLL