Immunogen sequence: ANSVNTASWD FPVPICRAED ACGGTMRGSS GIISSPSFPN EYHNNADCTW TIVAEPGDTI SLIFTDFQME EKYDYLEIEG SEPPTIWLSG MNIPPPIISN KNWLRLHFVT DSNHRYRGFS APYQGSSTLT HTTSTGELEE HNRTTTGAIA VASTPADVTV SSVTAVTIHR LSEEQRVQVT SLRNSGLDPN TSKDGLSPHP ADTQSTRRRP RHA