Immunogen sequence: MAFRDVAVDF TQDEWRLLSP AQRTLYREVM LENYSNLVSL GISFSKPELI TQLEQGKETW REEKKCSPAT CPDPEPELYL DPFCPPGFSS QKFPMQHVLC NHPPWIFTCL CAEGNIQPGD PGPGDQEKQQ QASEGRPWSD QAEGPEGEGA MPLFGRTKKR TLGAFSRPPQ RQPVSSRNGL RGVELEASPA QTGNPEETDK LLKRIEVLGF GTV