10 20 30 40 50 GACCGUCCGAUUAUUACAU- -| CA A GCGUGGUGA GUCUCC UCA UUUUGAUUGCUGCUC GCAA \ CGGAGG AGU GAAACUAACGAUGAG UGUU A GCCCGUGAACAACAUUACGU U^ CA C GGACAAGAA . 110 100 90 80 70