10 20 30 40 50 ACUUGGUGACUAAUGAU- CUC- A - -| U UGGC UCCCG CGGUCAGUUU GC UGG UUUGCA CAGC U AGGGU GUCAGUCAAA CG ACC AAACGU GUCG A UCGUUAAGACCUCUUGGA UUAU A U U^ - UGUC 110 100 90 80 70 60