10 20 30 40 50 60 UUCGGUGCUGGAUGGUG----| UC - C GU UGGUGA CCGAC GCGGUUAGUUUUGC UGG UUUGCA CAGU U GGCUG CGCCAGUCAAAACG ACC AAACGU GUCG C GCACUCUCUAACAGCGGUAAC^ -- C U -- UUACUC 120 110 100 90 80 70