10 20 30 40 50 60 AUCAGGACAAAAGGACGU--| G A UAAACCCC ACAGUGCA UCAUCCAUAAAGUAG AAGCACUAC U UGUCAUGU AGUAGGUAUUUCAUC UUUGUGAUG C GCUUCACAAGGGUCGUCGGU^ G C UGACACCG 120 110 100 90 80 70