Immunogen sequence: QSPKGLDAAT FQNVHDFNEL KDRDSETRVD LKFMYLDPPR DHHTLEIQQQ ALLREQQKRL NRIKMQEGAK VDLDAIPSAK VREQRMPRDD TSDFLKNSLL ESDSAFIGAY GETYPAIEDD VLPPPSQLPS ARERRRNKWK GLDIDSSRPN VAPDGLSLKS ISSVNVDELR VRNEERMRRL NEFHNKPINT DDESSLVDPD DIMKHIGDDG SNS