Immunogen sequence: MAEASSANLG SGCEEKRHEG SSSESVPPGT TISRVKLLDT MVDTFLQKLV AAGSYQRFTD CYKCFYQLQP AMTQQIYDKF IAQLQTSIRE EISDIKEEGN LEAVLNALDK IVEEGKVRKE PAWRPSGIPE KDLHSVMAPY FLQQRDTLRR HVQKQEAENQ QLADAVLAGR RQVEELQLQV QAQQQAWQAL HREQRELVAV LREPE. PMF1 is