Immunogen sequence: GKKARDSERN HRTTEAEPKP LEEPKHETKK LKNLSEYAQT LQLGWNGLLV LKNSCFPTSM HILEGDQGVI SSLLKDHTSG Highest antigen sequence identity to the following orthologs: Mouse - 93%, Rat - 94%. May function in the regulation of alternative or illicit spl