10 20 30 40 50 60 AUUCUGGACUGAGAGAA- CUCC-| UC U C U AGGACU UCCA GUCU CCAGUGU CGGACUAC UGU C A GGGU CGGA GGUUACA GUCUGAUG ACA G C GGUCUUGGACGACACAUA CGUGU^ UU C - U UUAGAA . 110 100 90 80 70