10 20 30 40 50 UCUGUUUGAGCCAUGAU--| U GU CCU AU GC AUACU GUG GCA GC GCUCAGG G GCUGAUUAC \ CAC CGU UG CGGGUCC C CGAUUAGUG C UGUGUUUGCCACCAAGAAU^ U AG AGC GU UA AGGAU 110 100 90 80 70 60