Immunogen sequence: GIQLSPGVGS SAGPPGDLED DEGLKHLQQE AEKLVASLQD SSLEEEQFTA AMQTQGLRHS AAATALPLSH GAARKWFYKD PQGEIQGPFT TQEMAEWF Highest antigen sequence identity to the following orthologs: Mouse - 91%, Rat - 90%. May act cooperatively with GRB10 to regu