10 20 30 40 50 60 CUGGGAGACCUCUCCAGU- C C-| A AA A UUGGUUUG CAC UGCUC UC GAUCAG GGUG UUGUGGCU \ GUG ACGAG AG CUGGUC UCAC GACACCGA A UACAUCAUUUUCCGAUCAU A AA^ A CG - CAAAGUAU 120 110 100 90 80 70