10 20 30 40 50 GCGAUCUCGGUGUUCUU-- A - U - -| U AAUGCUGACA GCCAAUUUU C GC CCA CAAAGU GGCU UGA \ CGGUUAAAA G CG GGU GUUUCG CCGA ACU U CCUUCCCCAAUUAGCUGGC C U - A U^ C AUUUGGUAAC . 110 100 90 80 70 60