10 20 30 40 50 60 ACGGGUACUUUUGAGCU--| UA UAU UGUAUG GCUGAAGGUCCAC GACAUUCUGA CCCAUUGUU A CGAUUUCCGGGUG UUGUAAGACU GGGUAACAA C GCUUCUACUACGACGCCCA^ -- CU- GUUUCU . 110 100 90 80 70