Immunogen sequence: LVLDFNNIRS SADLHGARKG SQCLSDTDCN TRKFCLQPRD EKPFCATCRG LRRRCQRDAM CCPGTLCVND VCTTMEDATP ILERQLDEQD GTHAEGTTGH PVQENQPKRK PSIKKSQGRK GQEGESCLRT FDCGPGLCCA RHFWTKICKP VLLEGQVCSR RGHKDTAQAP EIFQRCDCGP GLLCRSQLTS NRQHARLRVC QKIEKL; Positi