Immunogen sequence: MSTVMSRKGP APELQGVEVA LAPEELELDP MAMTQKYEEH VREQQAQVEK EDFSDMVAEH AAKQKQKKRK AQPQDSRGGS KKYKEFK Highest antigen sequence identity to the following orthologs: Mouse - 100%, Rat - 100%. Subunit of the splicing factor SF3B required for '