10 20 30 40 50 CUCAGCCAGCAGCUGUU--|AG AU A G A A CU GGAAU G AGC CGG GCU UCGG GCCG UGUU AGCU G C UCG GUC CGA AGCC CGGU GCAG UCGG A GACCAGGGUCCCACAGAAA^CU GU C G A C -- CAAAA 110 100 90 80 70 60