10 20 30 40 50 UCUCUCCCACUUUCCCUC G - C-| AGUAUU ACA CUGCCAGUG UCAUUUUUGUGAU UGCAGCU C UGU GACGGUCAC GGUGAAAACACUG ACGUUGA U AGACAGGUACAUCGUCGG G U AU^ CCUCAC . 110 100 90 80 70 60