10          20        30        40        50          
GAACAAUACGGAUCAUCU--|   U       UA     U   UC         GUUAUAA 
                    GUCA CUAUAUA  CCCUG AGA  CGAAUUUGU       \
                    UAGU GAUGUAU  GGGGU UCU  GCUUAAACA       A
CCAAAAGGACCGCUUCACAG^   U       CA     -   UC         CUGACGC 
.       110       100        90         80        70