10            20        30        40        50         
GUUCGAUGUCACUAUCC----|   CG   A         CGGA    U        AUUUU 
                     AGGC  GGA GGGAGUUGC    GCAU GCACAACA     \
                     UCCG  CCU CCUUCAGCG    CGUG CGUGUUGU     U
UAGUAAGACACCAUUUCAUAG^   --   G         ACAG    -        AUGUA 
      110       100          90        80         70        60