10         20         30        40            50         
UCAAGAUCUUUUUCAGAAC-   UAA-     A           ----|  C    UUGUGUAU 
                    GAU    GUAGC CCCAAAACGGG    GCU UCUC        G
                    CUA    UGUUG GGGUUUUGUCU    UGA AGAG        A
GUUAUGGUACAACAUAUAGA   CAGG     C           UUCG^  A    UGGUAUUA 
  120       110       100        90        80        70        60