10        20           30        40        50        
AAUGAGUCAGGAAUUUUGG      ---|           C    A         AUGAU 
                   AGCUGU   UUCGAUUUGUGA CGCA UAAUGGGCG     U
                   UUGGCG   AAGUUGAACACU GUGU GUUGCUCGC     U
AGCUAUCUUUGCAACCUU-      UCC^           U    A         GAAGA 
      110        100        90        80        70        60