10 20 30 40 50 60 AAUCCCUUUCCACCUGGU ACU--| C U - AGCA AG CCAUAC GGGU GGCCU GG GCUGG UGG GUG CACG A CCCG CCGGA CC CGACC ACC CAC GUGU U AGGGGAGGUCUUCAUACA GAUCC^ A - C GUC- A- CUAUAU 120 110 100 90 80 70