Immunogen sequence: PDQHRNFYYS KFFDLICLME QIDVTLKWYE DLIPSAYFPH SQTMIHLLQA LDVANRLEVI PKIWKDSKEY GHTFRSDLRE EILMLMARDK HPPELQVAFA DCAADIKSAY ESQPIRQTAQ DWPATSLNCI AILFLRAGRT QEAWKMLGLF RKHNKIPRSE LLNELMDSAK VSNSPSQAIE VVELASAFSL PICEGLTQRV MSDFAINQEQ KEA