Immunogen sequence: MTEEVIVIAK WDYTAQQDQE LDIKKNERLW LLDDSKTWWR VRNAANRTGY VPSNYVERKN SLKKGSLVKN LKDTLGLGKT RRKTSARDAS PTPSTDAEYP ANGSGADRIY DLNIPAFVKF AYVAEREDEL SLVKGSRVTV MEKCSDGWWR GSYNGQIGWF PSNYVLEEVD EAAAESPSFL SLRKGASLSN GQGSRVLHVV QTLYPFSSVT EEE