Immunogen sequence: GRSGESVEEV PLYGNLHYLQ TGRLSQDPEP DQQDPTLGGP ARAAEEVMCY TSLQLRPPQG RIPGPGTPVK YSEVVLDSEP KSQASGPEPE LYASVCAQTR Highest antigen sequence identity to the following orthologs: Mouse - 77%, Rat - 78%. SIT (SHP2-interacting transmembrane ad