10          20        30        40        50          
UUUUAUUAUUUUUGAGU--|     AG             CAGA  A        UAAAAU 
                   AAAUUU  UACUGGGUUGGCA    GU GUACUGUG      \
                   UUUAAA  AUGAUCCGGCCGU    CA CAUGAUAC      U
UACUGAACGACCACUUAAC^     GA             ACC-  G        UUUAUC 
.       110       100        90        80         70