10 20 30 40 50 UGCUGGAGGUAGAAGGU--| U GUGGUCU CUCAGGC GUGACCCUCUAGAGGGAAGCGCUUUCU \ GGGUUUG CAUUGGGAGAUUUUCCUUCGUGAAAGA G GGUUGACGUUGCACCGAAA^ C AAAGAAA . 110 100 90 80 70