Immunogen sequence: MSWFVDLAGK AEDLLNRVDQ GAATALSRKD NASNIYSKNT DYTELHQQNT DLIYQTGPKS TYISSAADNI RNQKATILAG TANVKVGSRT PVEASHPVEN ASVPRPSSHF VRRKKSEPDD ELLFDFLNSS QKEPTGRVEI RKEKGKTPVF QSSQTSSVSS VNPSVTTIKT IEENSFGSQT HEAASNSDSS HEGQEESSKE NVSSNAACPD HTP