10 20 30 40 50 60 UGGAGCCAUCCGAGUCC- GC-| U G AU GUGAU CGGGCA GAAU ACUUGGGCCAAG GA GCAAACU G GCCUGU UUUA UGAAUUCGGUUU CU UGUUUGA C UGGUGCACCGCGAAAUCA ACU^ U G -- UGAUC . 110 100 90 80 70