10        20           30        40        50       
UCAUAUCAGAUUCUCACCUGAAC---|  UG    UU      C     UU   GAAUU 
                          GCA  ACUC  CAACCU AGGAC  GCA     A
                          CGU  UGAG  GUUGGA UCCUG  CGU     A
GGGUAUCUCUACUUUACGGGUCUUUA^  GU    UU      A     U-   AAGGU 
    110       100        90        80        70         60