10          20        30        40        50          
GGCACAUUGGGGACUUGCC--| U     U            U   U        GUCCUA 
                     CC UUCUG AUAGGUUGGGAU GGU GCAAUGCU      \
                     GG AGGAU UGUCCGGCCCUG UCA CGUUAUGA      U
CUCCCCCCUAUUUUUAGGGUU^ U     U            U   -        UGUAUU 
.       110       100        90        80         70