Immunogen sequence: KEVLKRKIEI ERILSVSLST MQDDIFILHE QEYDSLLESV FKTEFLSLLA KRYEEKTQKQ LPLKFSNTLE LKLKKENWGP WSAGGSRQVQ FHQGFGDLAV LKPSNKVLQV SIGPGLPKNS RPTRRNTTQN TGYSSGTQNA NYPVRAAPPP PGYHQNGVIR NQYVPYPHAP GSQRSNQKSL YTSMARPPLP RQQSTSSDRV SQTPESLDFL KVP