10 20 30 40 50 60 UCACGUUAAGUGGAAUCCGA- UG AUC-| UU A C UGCAGUUUUU GGU GG ACUGAAUUCU UG UGC UAGA \ UCG CC UGACUUAAGG AC ACG AUCU C CUCGUUUGCUUCUAAUUACGG GU CAUU^ UU C - UAAGAUCAGU 120 110 100 90 80 70