10          20        30        40        50        60  
AGUAGGAAUGGUAAGAU--|      A  A        CA    A    GU    GUAUUUCC 
                   AUUAAAU UG UGAAGAAU  CCUU AGCU  GGUC        A
                   UAAUUUA AC GCUUCUUG  GGAA UCGG  CUAG        C
CUAUGUGUACAACUGAUUA^      C  A        AC    C    --    CUCGUGAG 
  120       110       100        90        80          70