Immunogen sequence: DLEERNRRSS GHRDRERDSR DRESRREKEE ARGKEKPEVT DRAGGNKTVE PPISQVGNVD TASELEKGVS EAAVLKPSEE LPAEATSSVE PEKDSGSAA Highest antigen sequence identity to the following orthologs: Mouse - 77%, Rat - 82%. The family of SR factors all contain on