Immunogen sequence: NDLEKSVEKI QRDVSHNHRL VPGPELEEKA LVLKQLGETL TELKAHFPGL QSKMRVVLRV EVEAVKFLKE EPQRLDGLLK RCRGVTDTLA QIRR Highest antigen sequence identity to the following orthologs: Mouse - 99%, Rat - 98%. Acts as a negative regulator of SRC by activ