10 20 30 40 50 AGCCACUGCUGGGGAAG-- CAU AU A-|G CGACCCUGG GGGCAG CUC GGGCUG C AACCUGAGAA \ CCCGUC GAG CCUGAC G UUGGACUCUU A CCGAGGUGGCCAGCGGGAA ACU GU AG^- ACCACUCAG . 110 100 90 80 70