10 20 30 40 50 60 CUCGCAUGUGCACUAAC-| A C C U C UUGUGU CUGCUGUGAGC AAGCUGA UCGUG GGU GC ACG C GAUGACGCUUG UUCGACU AGUAC CCA CG UGC U UCGUCGCCGACAAUCUCC^ A U A - A GUAGAG . 110 100 90 80 70