10 20 30 40 50 60 AAAAACCUUCAGAAGCA-----| U UGAA -- A CCGAAGCAUCAUGUCC AGGU UUC CUGCC GGGAAACU CAGGA \ UUCG AAG GACGG UCUUUUGG GUCCU U CACCGGGAACUCCUGUAUACAC^ U ---- UU - CCGUACAACGUCUUAC . 120 110 100 90 80 70