Immunogen sequence: MGTVHARSLE PLPSSGPDFG GLGEEAEFVE VEPEAKQEIL ENKDVVVQHV HFDGLGRTKD DIIICEIGDV FKAKNLIEVM RKSHEAREKL LRLGIFRQVD VLIDTCQGDD ALPNGLDVTF EVTELRRLTG SYNTMVGNNE GSMVLGLKLP NLLGRAEKVT FQFSYGTKET SYGLSFFKPR PGNFERNFSV NLYKVTGQFP WSSLRETDRG MSA