10        20           30        40        50        60
GUGAAGGGAAUUAACGAGUCC        ---|    C    UUC           CCUGUA 
                     CCAUCGGU   UCACU UAAG   GAAUGCCGAGC      U
                     GGUGGUCG   AGUGA AUUC   CUUGUGGUUCG      A
UGCCGAAGCGACCUAACACU-        CUC^    C    CAU           ACGAAA 
120       110        100        90        80        70