Immunogen sequence: MMCQSEARQG PELRAAKWLH FPQLALRRRL GQLSCMSRPA LKLRSWPLTV LYYLLPFGAL RPLSRVGWRP VSRVALYKSV PTRLLSRAWG RLNQVELPHW LRRPVYSLYI WTFGVNMKEA AVEDLHHYRN LSEFFRRKLK PQARPVCGLH SVISPSDGRI LNFGQVKNCE VEQVKGVTYS LESFLGPRMC TEDLPFPPAA SCDSFKNQLV TRE