10          20        30        40        50         
UUUUGUAAUAAAGGUAAA--|           UUU     U  U    UG A   GUAAU 
                    GUGCAGAAUUAU   UGCAA GU UUCC  G UAU     \
                    UAUGUUUUGAUA   ACGUU UA AAGG  U AUG     A
UCGAAAAAGAGGUAUGUAAC^           CCU     U  C    GU -   UACAU 
      110       100        90        80        70         60