10 20 30 40 50 CCGUAGAAAUCACUCGG----| GA U G U A CUUGUG GCUCU GCUGC CAUCACUA AUC UGCUG UAUC \ UGAGG UGACG GUGGUGAU UAG ACGAC GUAG A GACAACCCAACCAUAAGCAAC^ -- U G U - ACUCGA . 110 100 90 80 70