10 20 30 40 50 AGAGAUGUCAGUGCCAGCAU-- CC GU U A-| G GCUGUAU CAU AGGGU GUGACUGG UG CCA AGG \ GUG UCCCG CACUGAUC AC GGU UCC U GCCAGAAGGACCCCAUAUACCU AC AC C CG^ G ACCUCUU . 110 100 90 80 70 60