10 20 30 40 50 60 GCUCCGAGACUGACCGA- -| UG U GU UGGGGCUCUGC CGGCC CUU GGG GAG AGUAGGUUGUAUAGUU C GUCGG GAA CCU UUC UCAUCUAACAUAUCAA C ACCGGCGACAGCCAUAAU U^ GU - UG UAGGGUAUCGU 120 110 100 90 80 70