10 20 30 40 50 60 GCUUCUGGAUGUUACAC- -| UG U AA GUCUGCU UGAGC UCU GCUU GAGAACUGAAUUCC GGGU U ACUCG AGG UGAA UUCUUGACUUGAGG CCCG U UCACACAAGUCUGCCGGC U^ UU - CA ACUUAUA . 110 100 90 80 70