10        20          30        40        50     
UCAAGAGACAGUAUCUGAUAUCG--|      U      C         U    UU 
                         AAUCUCU AUAUCG CUUUUGAGG UAUU  \
                         UUAGAGA UAUGGC GAAAACUCC GUAA  C
AGUUUGUUGCUAACAGGUCGACACA^      U      A         C    UU 
 .       100        90        80        70        60