10            20        30        40         50         
UUUAAGAGGGUUUUAAC----|      UCA               U  -       UUGGAU 
                     CAAUUUU   GUCUCAUAUUCGCAC UG ACAUAUU      \
                     GUUGAAG   CGGGGUAUAGGUGUG AC UGUAUAA      U
UUUACUGUGGCAACUGACAUG^      C--               C  A       AAUAAA 
.       110       100          90        80        70        60