10 20 30 40 50 60 UGUUAUGCUGGUGUCAAGU U --| U UC U A UGAAGUA GCUUUUUGU CUA AGG GCA UAG GCAG UAG G UGAAGAAUA GGU UCC CGU AUC CGUC AUC A UAAUGACCUACUUUUGUAU C CU^ U GA C - UACGAUU 120 110 100 90 80 70