10 20 30 40 50 60 AUUUGAUGAUUUUCUGG----| UU C U AUU A GGUUCCAGC CAG CC AGCUG GAGAACUGA CCAUG ACU U GUC GG UCGAU CUCUUGACU GGUAC UGA U CCGAUCAACACUUCUAUCUCU^ -- U - GAU C CUUCUGUUU 120 110 100 90 80 70