10 20 30 40 50 GCAGUGCACAUCGCCUUUU--| G G A UGUGCAC CUGUG CUGAG UGCAUUGU GUUGCAUUGCA \ GGUAC GACUC ACGUGACG CAAUGUAACGU A ACGUAACAGGAACGUAACGUU^ A G A GAAGGAA 110 100 90 80 70 60