10 20 30 40 50 GAAUAUUCCAAGACACU- - A - -| U AGUAUA GC UCAUUAC GUUAGUUUUGCA GG UUUGCAU GC U CG GGUAGUG CAGUCAAAACGU CC AAACGUG CG G GUUCCUGCUUCUGUCGUG U G A U^ U GUAUAU . 110 100 90 80 70 60