10 20 30 40 50 UCUCUUCACCUGGCCAU--| UG U CA U AGGGCU GUGACG UGGGC UCCCUUUGU UCCUU GCCU \ CACUGC ACUCG GGGGAAACG AGGGA CGGG C UUCGAGGUACGACACCCUC^ UG U AC - ACGAGU 110 100 90 80 70 60