10 20 30 40 50 60 UCGGCCGGCGCAGGAGU--| C AC UGAACA GCCUACUCAGAG ACAUACUUCUUUAUGU CCAUA U UGGAUGGGUUUU UGUAUGAAGAAAUGUA GGUAU U GAAGAAGAACCGCCUGUAA^ A A- CGUGAC . 110 100 90 80 70