10 20 30 40 50 CUGUGCUUUGGUUCUCU--| UA A C A U UUCAGG CCUCGG AGGUG GGACUA GG CGGGC GAGCU C GGGGCC UCCAC CUUGGU UC GCCCG CUCGA U CCUCCCCCUCACGGACCUU^ UC G C A U CACCCC . 110 100 90 80 70 60