10 20 30 40 50 CAACCUCCCCUGGCUGU--| CUG U CA U AGGGUU GUGAC UGGGC UCCCUUUGU UCCUU GCCC \ CACUG ACUCG GGGGAAACG AGGGA CGGG C UUCGAGGUACGACACCCUC^ CUG U AC - GUGAGU 110 100 90 80 70 60