10          20        30        40        50         
ACAAUUGUCACUAUCCUUU--|                   A        AUUUUGUGGU 
                     CUAGCAGCCUCCAUUGUACA GGUAUUCC          \
                     GGUUGUCGGAGGUAAUAUGU CUAUAAGG          U
CAACCCGACUUCUCUACAAAC^                   C        AAACUUACCU 
       110       100        90        80        70        60