10          20        30        40         50         
AGUGAGAUGAUGAACAGU--    UG  G   G         -|         U  UAAGG 
                    CUCA  AC CCA UCGUCAGAG UGGCUGUGGU CG     G
                    GGGU  UG GGU AGUAGUUUC ACCGACACUA GC     U
UGCAUUGGGUUCCACAUUCC    GU  G   G         G^         U  UUCAA 
 .       110       100        90        80        70        60