10 20 30 40 50 CUGCAGUCCCUGUUCAU--| CCG U A U GAGAAUA GUGAC UGGAC UCCCUUUGUC UCCUA GCCU \ UACUG ACUUG AGGGAAACGG AGGGU CGGG U CAGUCUCUUCUACGGUCAC^ UCA C A - GGAAGUA . 110 100 90 80 70