10 20 30 40 50 UUUGAUCCCACUGAUGGCAGAGCA-----| UC UCCCCU A GUGACGC CC CACCACC GC AACGUCCA \ GG GUGGUGG CG UUGCAGGU A CCAGGGGCAGGGGACCCCACAUACACAUA^ UA UCU--- A AAUGGAG . 110 100 90 80 70