10 20 30 40 50 UUAAUUCAGAGUCUGAU----| GU CU UU U C GUGUU GGGA CCCCU GCU AACAUGGGG UAC UGCU A UUCU GGGGG UGA UUGUACCUU GUG ACGA A UCUCUUUUACAACUUGUCAAA^ GU -- CU C A AAACA . 110 100 90 80 70 60