10        20          30        40        50        60  
GUGUGAAUUUUCGGCUUUUAAA--| U     C        U         GC    UAUUAU 
                        CC CGAGA UAGUUUUC CAGUGAUCU  CAGA      \
                        GG GUUUU GUCGAAAG GUUACUAGA  GUCU      U
CAGAUACGUAGAUCAGCUCCGAUA^ U     A        U         --    UUAAGU 
 120       110       100        90        80          70