10         20         30        40        50        60
UCAUACUACACUAAUUC-   A-|    GA  CAC       C       A   UCUUCAC 
                  AGC  GUGCA  UG   UCUAAGU UACUUCC CAG       U
                  UCG  UACGU  AC   AGGUUCA AUGAAGG GUC       U
GUUCUCUUACUUCAACCA   CA^    AA  AUC       A       A   UACGUAC 
120       110       100        90        80        70