10 20 30 40 50 UCAUAUCAGAUUCUCACCUGAAC---| UG UU C UU GAAUU GCA ACUC CAACCU AGGAC GCA A CGU UGAG GUUGGA UCCUG CGU A GGGUAUCUCUACUUUACGGGUCUUUA^ GU UU A U- AAGGU 110 100 90 80 70 60