Immunogen sequence: THLPGKRPAR GSLPEQPCTK KARADHGLIP DVKLEKTVPR LHRPSLQHFR EQFLVPGRPV ILKGVADHWP CMQKWSLEYI QEIAGCRTVP VEVGSRYTDE EWSQTLMTVN EFISKYIVNE PRDVGYLAQH QLFDQIPELK QDISIPDYCS LGDGEEEEIT INAWFGPQGT ISPLHQDPQQ NFLVQVMGRK YIRLYSPQES GALYPHDTHL LHN