10 20 30 40 50 GGACUCGCAGGAUACCCGC- AA-| G C AGUUU CUUUA GUAGAGAGAAUAGU GCUGUG UGUA C GAAAU CGUUUUUCUUGUCG UGACAC AUAU A AGCCCAAACCGACAAACCGU CCA^ G U CUAAA 110 100 90 80 70 60