10 20 30 40 50 AGCCAGGAAAAGUCAAA- CCUU-| AU C U UUGUU CC UCU GCAGGUUGGGAU AGU GCAAUGCU U GG GGA UGUCCGGCCUUG UCG CGUUAUGA G UAGAAAGCUGGUGUUAGG UCGUU^ GU U - CAUCU 110 100 90 80 70 60