10 20 30 40 50 CUCGGGCCAGGUGCUCU- CC- G -| C UUUCCC GGG UCU UGGGCAUC UUACCGGACAGUG UGGA G CCC GGA ACUUGUAG AAUGGUCUGUCAC AUCU G CGCACAGGACCGCCUCCC AGU A C^ A CAGAUC . 110 100 90 80 70 60