Immunogen sequence: IIPVEEENPD FWNRQAAEAL GAAKKLQPAQ TAAKNLIIFL GDGMGVSTVT AARILKGQKK DKLGPETFLA MDRFPYVALS KTYSVDKHVP DSGATATAYL CGVKGNFQTI GLSAAARFNQ CNTTRGNEVI SVMNRAKKAG KSVGVVTTTR VQHASPAGAY AHTVNRNWYS DADVPASARQ EGCQDIATQL ISNMDIDVIL GGGRKYMFPM GTP