10 20 30 40 50 AGAUGCAAGACUAAAGC----| U UUUCA C U U AUUACA CA GUGA GUGCAUU GCA GUC GGAUGCA U GU CACU CACGUGA CGU CGG CCUAUGU U UGGAGAAUAUACGUCGCAGCG^ - CAAA- A C U UUACGU . 110 100 90 80 70 60