Immunogen sequence: MAVGKNKRLT KGGKKGAKKK VVDPFSKKDW YDVKAPAMFN IRNIGKTLVT RTQGTKIASD GLKGRVFEVS LADLQNDEVA FRKFKLITED VQGKNCLTNF HGMDLTRDKM CSMVKKWQTM IEAHVDVKTT DGYLLRLFCV GFTKKRNNQI RKTSYAQHQQ VRQIRKKMME IMTREVQTND LKEVVNKLIP DSIGKDIEKA CQSIYPLHDV FVR