Immunogen sequence: NMFNHLSAVS ESIPALGWIA VSPKPGPYVK EMNDAATFYT NRVLKDYKHS DLRHVDWVKS YLNIWSELQA YIKEHHTTGL TWSKTGPVAS TVSAFSVLSS GPGLPPPPPP LPPPGPPPLF ENEGKKEESS PSRSALFAQL NQGEAITKGL RHVTDDQKTY KNPSLRAQGG QTQSPTKSHT PSPTSPKSYP SQKHAPVLEL EGKKWRVEYQ EDR