10          20        30        40        50        
UCUAUGUUGUGUGAGUU--|  U   G   UC        UUA            UGAA 
                   GUG GCA UGC  UAUUCAGA   GUGCCAGUCAUG    \
                   CAC CGU AUG  AUAGGUCU   CACGGUCAGUAU    A
UUUAGUGAACUUCUUAUAU^  U   A   UA        UAC            ACAU 
     110       100        90        80        70        60