Immunogen sequence: FAGLLNKHPA GQQLDEFLQL AVDKVEAGLG SGPCRSQAFT LLLWVTKALV LRYHPLSSCL TARLMGLLSD PELGPAAADG FSLLMSDCTD VLTRAGHAEV RIMFRQRFFT DNVPALVQGF HAAPQDVKPN YLKGLSHVLN RLPKPVLLPE LPTLLSLLLE ALSCPDCVVQ LSTLSCLQPL LLEAPQVMSL HVDTLVTKFL NLSSSPSMAV RIA