10 20 30 40 50 CCCGGCCUGGCCGCCCU--| C U C U CUGAC CUG GCCUGCCUGGCG CGAGCC GACG GCAAGAC \ GAC CGGACGGAUUGC GCUCGG UUGC UGUUUUG G CACCGCCCCACGUCUGUCC^ C - C U UAAGU 110 100 90 80 70 60