Immunogen sequence: VTVQCHTPRV IIQTVATEDI TSSISQAELT VDSDIQSSDF PEPPDALEAD TFPDEIHHPK MTVEPSFNDA HVSKFSDQNS TELMNSVMVR TEEEISDTDL KQEESPSDLA SAYVTEGLES PTIEEQVDQT IDDETILIVP SPHGFIQASD VIDTESVLPL TTLTDPILQH HQEESNIIGS SLGSPVSEDS KDVEDLVNCH. This gene enc