10 20 30 40 50 UUCAUCGUAUUGUUCGA--| CU C A UGUCGGC AUGUG CAGAUUUCG GAAUAG GGUAUAAUGC A UACAC GUCUAGAGC CUUAUC UCGUAUUAUG A AGAUAGUAGGUGCACAUUG^ CG A G CUUUAAU . 110 100 90 80 70 60