10        20          30        40        50        60        70        80         
CUAUGAUUAUAAAAAUAUCUUGU--|  CAU           A          UAUCUAUAACCCAGUGUAAGGGGAUUAUUACACAAUA 
                         UGA   UAUGUAUCAGU GCACAGGCGU                                     \
                         ACU   AUACAUAGUUA CGUGUCCGCA                                     C
UUAACUGUAAAGCAAGUAUAAUAAU^  UUU           G          AUAGAUAUUGCGUAACAUUCUCCUAUAAUCCAUAAUC 
       170       160       150       140       130       120       110       100        90