10         20         30         40         50        60   
GAAUCUUCAAAGAUACU-  UAU-                 -  -|     UUU    GUAUAUAU 
                  GC    UCACGAUUAGUUUUGCA GG UUUGCA   CAGC        \
                  UG    AGUGUUAGUCAAAACGU CC AAACGU   GUCG        G
GUUUCUGCAUCUUCCGUA  UAGU                 A  U^     ---    GGAUAUAU 
    120       110       100        90        80           70