10         20         30        40            50         
UCAAGAUCUUUAUUAAA-     UAUGA-   A          --   U --|   UUGUGCAU 
                  CUGAU      AGC CCCAAAACGG  GGC C  UCUC        G
                  GACUA      UUG GGGUUUUGUC  UCG G  AGAG        A
GUUAUGGUACAACAUAUA     CAGGUG   C          AU   U AA^   UGGUAUUA 
  120       110       100        90        80        70        60