Immunogen sequence: MPGVIPSESN GLSRGSPSKK NRLSLKFFQK KETKRALDFT DSQENEEKAS EYRASEIDQV VPAAQSSPIN CEKRENLLPF VGLNNLGNTC YLNSILQVLY FCPGFKSGVK HLFNIISRKK EALKDEANQK DKGNCKEDSL ASYELICSLQ SLIISVEQLQ ASFLLNPEKY TDELATQPRR LLNTLRELNP MYEGYLQHDA QEVLQCILGN IQE