10        20          30        40        50         
UCAUGUCAAUGUAUAUAAUA--|   C   U            G  U     A  GUAAU 
                      GACU AUC UAGCUCUUCAUU GG CAGCU UC     U
                      UUGG UAG GUCGGGAAGUAA CC GUCGA AG     U
AAUGUACUUUACUUCUACUAAA^   U   U            A  -     G  AAAGA 
       110       100        90        80         70        60