Immunogen sequence: MFSVFEEITR IVVKEMDAGG DMIAVRSLVD ADRFRCFHLV GEKRTFFGCR HYTTGLTLMD ILDTDGDKWL DELDSGLQGQ KAEFQILDNV DSTGELIVRL PKEITISGSF QGFHHQKIKI SENRISQQYL ATLENRKLKR ELPFSFRSIN TRENLYLVTE TLETVKEETL KSDRQYKFWS QISQGHLSYK HKGQREVTIP PNRVLSYRVK QLV