10          20        30        40        50        60  
CAUGGGCCUGCGGAAAG--|       U    AAU       U  C     U  A  GGGCAC 
                   GAAAGAGC UUGG   GACACGA CA UCCCG UG GU      \
                   CUUUCUCG GACC   CUGUGCU GU AGGGC AC CG      C
UCCGGGACGACCCUAGCGG^       U    CGC       -  A     U  -  AAGAAC 
 120       110       100        90         80         70