Immunogen sequence: MAEAVFHAPK RKRRVYETYE SPLPIPFGQD HGPLKEFKIF RAEMINNNVI VRNAEDIEQL YGKGYFGKGI LSRSRPSFTI SDPKLVAKWK DMKTNMPIIT SKRYQHSVEW AAELMRRQGQ DESTVRRILK DYTKPLEHPP VKRNEEAQVH DKLNSGMVSN MEGTAGGERP SVVNGDSGKS GGVGDPREPL GCLQEGSGCH PTTESFEKSV RED