10        20          30        40        50        60  
CUGCAGUUGGUGCGGUCACCUUA--| UG   CU                 GC    UAUUUU 
                         AA  AAA  GGUUUUCACAAUGAUUU  CAGA      \
                         UU  UUU  UCAAAAGUGUUACUAGA  GUCU      U
AGCACCAGUUUCUACAAUGUAUCCC^ GU   AG                 --    UAAAGA 
 120       110       100        90        80          70