10 20 30 40 50 CUUCCGGGGCAGGGUGA- U-| CA AU A U CGCUAC UGGUG CA UGC UACUGAG GAUG CAUCACA \ GCCAC GU ACG AUGACUC CUAC GUAGUGU C GCGGAAAGGGCGCCGAGA CU^ AC CC A U CUUACU 110 100 90 80 70 60