10 20 30 40 50 CGAGCCCGGAGCAACCU--| C U CC U CUGAC CUG ACUUGCCUGGCG CGAGCC ACG GCAAGAC \ GAC UGGACGGAUUGC GCUCGG UGC UGUUUUG G AGCGUCCGCACGGCUGUCC^ C - CU U CAAGU 110 100 90 80 70 60