10         20         30        40            50         
UCAAGAACUUUUUUAAA-     UAUGA-   A           ----|  C    UUGUGCAU 
                  CUGAU      AGC CCCAAAACGGG    GCU UCUC        G
                  GACUA      UUG GGGUUUUGUCU    UGA AGAG        A
GUUAUGGUACAACAUAUA     CAGGUG   C           UUCG^  A    UGGUAUUA 
  120       110       100        90        80        70        60