10 20 30 40 50 60 UAAUCGUCGUGACCUGUG--| UC C U C UA AG UGUUUGUA GUG UAAAAAU UUGU CC UAUGU AGGG CC \ CAC AUUUUUG GACA GG AUACG UCCC GG A CUCCACAAACAAGUAACCCA^ UU U - A -- CU ACGGGAUA 120 110 100 90 80 70