Immunogen sequence: LHLTRKVVRN LNYQKKLDVT IEPSEEPLFP ADELYGIVGA NLKRSFDVRE VIARIVDGSR FTEFKAFYGD TLVTGFARIF GYPVGIVGNN GVLFSESAKK GTHFVQLCCQ RNIPLLFLQN ITGFMVGREY EAEGIAKDGA KMVAAVACAQ VPKITLIIGG SYGAGNYGMC GRAYSPRFLY IWPNARISVM GGEQAANVLA TITKDQRARE GKQ