10 20 30 40 50 GCACGGAGUAGCCAAAG---| UU CCA U C CUAGAG CUG CCUGC GUGGUCACAGU GGCG CAGCC U GAC GGACG UACCAGUGUCA CUGU GUUGG C GGGGAGGUGGACCGGAGGAC^ C- UGA C A GUAGAU . 110 100 90 80 70 60