10 20 30 40 50 CUCUCUGGCAUCAUCCUUU--| C AUUUUGUGGU CUAGC GCCUCCAUUGUACAAGGUGUUCC \ GGUUG CGGAGGUAAUAUGUUCUAUAAGG U GAAACCGACGUCUCUAGAAAC^ U AAACUUACCU 110 100 90 80 70 60