10 20 30 40 50 GAGCAGAUAUCAACCCGGGUUGUU--| C U GUUUU AUGAGGUUACGGGG AGUUAUA CCAUGU U UAUUCCAAUGCCCC UCAAUAU GGUACA U GUUUGAUAUACUACUUAGGUUGUGGU^ U - ACAGC 110 100 90 80 70 60