10 20 30 40 50 GGGCUUCCUUCCCGGGA-- A -| C UGGAUA CCUUGGUCC GGCG CUGGUCUG GUGGUGCUCGGG \ GGAACCAGG CCGC GGCCGGAC CACCACGAGUCU A UCUAGGAGAACAGCUCGGG G G^ A AGUCUG . 110 100 90 80 70 60