Immunogen sequence: LDSTGYYDQE IYGGSDSRFA GYVTSIAATE LEDDDDDYSS STSLLGQKKP GYHAPVALLN DIPQSTEQYD PFAEHRPPKI ADRED. This gene encodes subunit 1 of the splicing factor 3b protein complex. Splicing factor 3b, together with splicing factor 3a and a 12S RNA u