10 20 30 40 50 UUUGUUGCCCACACCCA-- UC G CU A-| CUGGGA GC CCCUG CU AGCAGCACAG AAUAUUGGCA A UG GGGAC GA UCGUCGUGUC UUAUAACCGU G CGGGGAGGACCGUCGAGAG GU G CC GG^ CUGAGA . 110 100 90 80 70 60