Immunogen sequence: SRPLQARSQQ HHGLAADLGK GKLHLAGPCC PSEMDTTETS GPGNHPERCG VPSPECESFL EHLQRALRSR FRLRLLGVRQ AQPLCEELCQ AWFANCEDDI TCGPTWLPLS EKRGCEPSCL TYGQTFADGT DLCRSALGHA LPVAAPGARH CFNISISAVP RPRPGRRGRE APSRRSRSPR TSILDAAGSG SGSGSGSGP; Positive Sampl