10        20          30        40        50        60
CGGAGGAUGCUACGACGC   --|   G    C    U   UCCA        CGGAUGCC 
                  GGG  GCGU UCGC CCCC CAG    CCAGAGCC        U
                  CCC  CGUA AGCG GGGG GUC    GGUCUCGG        C
ACGCCUUUUAGCCCCAAA   GA^   A    A    U   UG--        CUUAAAGA 
.       110       100        90        80          70