10          20        30        40        50        60  
GUCUCCCUCUCCCCCUGAA--|    U  C  A          CU       A  UUUGUCAG 
                     AGGCC CG GG ACAUUCAACG  GUCGGUG GU        \
                     UUCGG GU CC UGUGAGUUGU  CAGCUAC CA        U
CAGGGCGGCCAGCGAGCCCGG^    U  C  A          --       -  AACUCGCG 
120       110       100        90        80           70