10 20 30 40 50 CUGGCCACUGCCCAAGU- -| A A UCU A GUGAAAC GAG GGGUGUUUCG GG CUG AACCUGAGA UG \ CUC UCCGCAGAGU CC GAC UUGGACUCU AC A CGACGGAGAGGUCGAGAC U^ A C UGC A UGGAAGU . 110 100 90 80 70