Immunogen sequence: MTGKLAEKLP VTMSSLLNQL PDNLYPEEIP SALNLFSGSS DSVVHYNQMA TENVMDIGLT NEKPNPELSY SGSFQPAPGN KTVTYLGKFA FDSPSNWCQD NIISLMSAGI LGVPPASGAL STQTSTASMV QPPQGDVEAM YPALPPYSNC GDLYSEPVSF HDPQGNPGLA YSPQDYQSAK PALDSNLFPM IPDYNLYHHP NDMGSIPEHK PFQ