10            20        30        40        50      
GUUACUUUUAAUUCAGAAU----|     UU  CU              A       CG 
                       GUUGUA  CA  GAUAUGUUGAAGUU GGGGUUG  \
                       CAACAU  GU  UUAUACGACUUUAA CCCCAAU  U
UUCAACUCACUUCAAUGCGCUUU^     CU  --              -       AU 
110       100        90        80          70         60