10 20 30 40 50 UGUGUGUGUGAGCAGGGAU- GG-| A U UG UGGGU GAUG CGGUG ACCCG AUGCUGU GGUGUGU \ CUGC GCCAC UGGGC UGUGGCA UCGCACA U CGUUUGACAUCUGCUCGAAC GGA^ C U -- GUGGC 110 100 90 80 70 60