Immunogen sequence: KGKEWTSTEK SREEDQQASN QPNSIALPGT SAKRTKEKMS IKGSKVLCPK KKAEHTDNPR PQKKIPIPPL PSKLPPVNLI HRDILRAWCQ QLKLSSKGQK LDAYKRLCAF AYPNQKDFPS TAKEAKIRKS LQKKLKVEKG ETSLQSSETH PPEVALPPVG EPPALENSTA LLEGVNTVVV TTSAPEALLA SWARISARAR TPEAVESPQE ASG