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