10          20        30        40        50       
UAAGUGAAAUCUUUGAU--|  AC  C    G        C    UU       GUAU 
                   GUG  GG AGAU GGAGACUA CUAA  GCAAAGU    C
                   CGU  CU UCUG CCUUUGAU GAUU  CGUUUCA    U
GAAAUAGGACAUCUGUACA^  GA  U    G        U    UC       GCUA 
    110       100        90        80        70        60