Immunogen sequence: EEYDYYGWQA EPLHGRSYSK PPQCLDIPAD LPLCHTVGYK RMRLPNLLEH ESLAEVKQQA SSWLPLLAKR CHSDTQVFLC SLFAPVCLDR PIYPCRSLCE AVRAGCAPLM EAYGFPWPEM LHCHKFPLDN DLCIAVQFGH LPATAPPVTK ICAQCEMEHS ADGLMEQMCS SDFVVKMRIK EIKIENGDRK LIGAQKKKKL LKPGPLKRKD TKR