Immunogen sequence: MEREPGAAGV RRALGRRLEA VLASRSEANA VFDILAVLQS EDQEEIQEAV RTCSRLFGAL LERGELFVGQ LPSEEMVMTG SQGATRKYKV WMRHRYHSCC NRLGELLGHP SFQVKELALS ALLKFVQLEG AHPLEKSKWE GNYLFPRELF KLVVGGLLSP EEDQSLLLSQ FREYLDYDDT RYHTMQAAVD AVARVTGQHP EVPPAFWNNA FTL