10 20 30 40 50 60 AUCUGAUCGGAGUCUGACU- -| UG U GU UUAGGGCUCUGC GUC CUU GGG GAG AGUAGGUUGUAUAGUU C CGG GAA CCU UUC UCAUCUAACAUAUCAA C ACAGGUCGCUACCAUAGUGU U^ GU - UG UACACUGUCCGU . 120 110 100 90 80 70