Immunogen sequence: CVTKDGLRLE GESEFLFPLY AKEIHSRVDS SLLLQSTQNV TVNARNSEGE VTGRLKVGPK MVEVQNQQFQ INSNDGKPLF TVDEKEVVVG TDKLRVTGPE GALFEHSVET PLVRADPFQD LRLESPTRSL SMDAPRGVHI QAHAGKIEAL SQMDILFHSS DGMLVLDAET VCLPKLVQGT WGPSGSSQSL YEICVCPDGK LYLSVAGVST TCQ