10 20 30 40 50 60 GAGCUUUCUGAACCAAU--| AUGU AGA C G UC CCAAAGUU GCCA CAGAG GGAUUCUG UGCC G CCACU \ CGGU GUCUC CCUAAGAC ACGG U GGUGG U AGGUCUGGUCUACUACAUA^ GUCC AGG - G -- GUAAAAUA 120 110 100 90 80 70