10 20 30 40 50 60 CCAGACUGAGAACUCAU--| ACGU AAA C G UC CCAAAGUU GCCA CAGGG GGAUUCUG UGUC G CCACU \ CGGU GUCUC CCUAAGAC ACGG U GGUGG G GUCCCUGGGCUGCUGUAUA^ GUUC AGA - G -- GUAAAAUA 120 110 100 90 80 70