10 20 30 40 50 60 UUGGUCGACACAGAGCC- CUCC-| C U C U GGACU UCCA GUCUG CCAGUGU CGGACUAC UGU CA A GGGU CGGAU GGUUACA GUCUGAUG ACA GU C UGACACAUACGCCAUAUA CGUGU^ U C - U UAGAG . 110 100 90 80 70