10 20 30 40 50 60 GCUCCGCUCUCCCUGGG----| UU UU GUAAGGU CAGUCU GCUGCUGUAAACAUCC GACUGGAAGCU G GUCGGA CGGCGACAUUUGUAGG CUGACUUUCGA U UCGUCGGCCCCUGCUGGCACC^ -- -- GGAGAAU 120 110 100 90 80 70