10 20 30 40 50 GCAGCGGAAUUGGCCGA- - U -| CG A C AGUGAU UCCC GGCU GUUC CUCGG UUUCCGGC CGG CA \ AGGG CCGG CAAG GAGCU AAAGGUCG GUC GU G GGGGCCGACUGGACCUCG A U U^ A- G A CUUUGC 110 100 90 80 70 60