Immunogen sequence: MTPLVSRLSR LWAIMRKPRA AVGSGHRKQA ASQEGRQKHA KNNSQAKPSA CDGLARQPEE VVLQASVSSY HLFRDVAEVT AFRGSLLSWY DQEKRDLPWR RRAEDEMDLD RRAYAVWVSE VMLQQTQVAT VINYYTGWMQ KWPTLQDLAS ASLEEVNQLW AGLGYYSRGR RLQEGARKVV EELGGHMPRT AETLQQLLPG VGRYTAGAIA SIA