10            20        30        40        50        
UCUGGCCUCUCCUUCAG----|    CU      U     G    A          GUUGG 
                     CUGAU  GUGGUU AGGUA UUUC UGUUGUUGGG     C
                     GACUG  CAUUAA UCCGU AAAG ACAACGGCUC     U
CAACCGGGUCUACUUCUGCUU^    --      U     G    A          AAUUU 
      110       100          90        80        70        60