10 20 30 40 50 CGGAUUCCAGCCGAUCU--| C GG A U AGU GGGGUAG AC GCA GUGUG AGUGGUCAC UG UGCAGU \ UG CGU CACAU UCGCCAGUG AC AUGUCG U UUAGAGGACUGCCUCUCUG^ C GA C U CCU CACAAGG . 110 100 90 80 70