Immunogen sequence: MAVLLLLLRA LRRGPGPGPR PLWGPGPAWS PGFPARPGRG RPYMASRPPG DLAEAGGRAL QSLQLRLLTP TFEGINGLLL KQHLVQNPVR LWQLLGGTFY FNTSRLKQKN KEKDKSKGKA PEEDEEERRR RERDDQMYRE RLRTLLVIAV VMSLLNALST SGGSISWNDF VHEMLAKGEV QRVQVVPESD VVEVYLHPGA VVFGRPRLAL MYR