Immunogen sequence: MSLVAEAFVS QIAAAEPWPE NATLYQQLKG EQILLSDNAA SLAVQAFLQM CNLPIKVVCR ANAEYMSPSG KVPFIHVGNQ VVSELGPIVQ FVKAKGHSLS DGLEEVQKAE MKAYMELVNN MLLTAELYLQ WCDEATVGEI THARYGSPYP WPLNHILAYQ KQWEVKRKMK AIGWGKKTLD QVLEDVDQCC QALSQRLGTQ PYFFNKQPTE LDA