10 20 30 40 50 GCAUUCCUGGCAGAGGUUAA- AUAAA-| U AG G UUCAUG CCG UGGGUGA UGUG UCUGGU CAUG \ GGC ACCUACU ACAC AGAUCA GUAC A UCCAAUGAUUCUACUAAAAAG GAAGAC^ C CU - UGCAGU . 110 100 90 80 70