10 20 30 40 50 GCAUCAGAGUGAUCAUUG--| U C U UAUAUUU UGAUGCUGGU UAAGUCCAGA AAG GUUUUCUG \ ACUACGACCA GUUUAGGUCU UUC CAAAAGAU A CCACGGGAAUCAUAUAUUAG^ U A - GUAAUAG . 110 100 90 80 70