10 20 30 40 50 60 CCUCCAGAAACUCCACGU- C C-| A AA A UUGGGUGG CAC UGCUC UC GAUCAG GGUG CUGUGGCU \ GUG ACGAG AG CUGGUC UCAC GACACCGA A UACUCCAUUUUCCGAUCCU A AA^ A CG - CUAAUUAU 120 110 100 90 80 70