Immunogen sequence: QMTGKCELQR IFDTYVGAQR THRIENSLTY SKNKVLQKAT HVVQSEVDKY VDDIMKEKNI NPEKDASFKI CMKMCLLQIT GYKQLYLDVE SVRKRPYDSD NLQHEELLMK LWNLLMPTKK LNARISKQWA EIGFQGDDPK TDFRGMGILG LINLVYFSEN YTSEAHQILS RSNHPKLGYS YAIVGINLTE MAYSLLKSEA LKFHLYNLVP GIP