10 20 30 40 50 GCUACAGAGCAAACCAU--| U C UGCGC U U C UAAACU UAGCAGC GC CC CCAGGGAUA AA AG GG \ AUCGUCG CG GG GGUCCCUAU UU UC CC U CUCCGUCGUCACCACUACC^ C U UCAU- C U A AGAAAC . 110 100 90 80 70