10 20 30 40 50 GUUACAUUUUGUCUCUUU-- U UC -| G C UAGCAU GAUGAU AUC CAUC UUAC AGGCAG AUUGGA \ CUGCUG UAG GUAG AAUG UCCGUC UAAUCU C AGGAAGUCAGCACCGGACGU C UA U^ G A UUUUCA . 110 100 90 80 70 60