10 20 30 40 50 GUGCAACAGGUUGCAAG--| A U U G U G GUGUU UCGGAU UA UCU CUUUG UGA CUAGUU UAUGA U AGCUUA GU AGA GAAAC ACU GGUCGA AUACU U GCGAGCCGAGCAGCUUCUC^ C U C G U A AUAUA . 110 100 90 80 70 60