10 20 30 40 50 UUUGUUGCCCACACCCA-- U G CU A-| CUGGGA GCU CCCUG CU AGCAGCACAG AAUAUUGGCA A CGG GGGAC GA UCGUCGUGUC UUAUAACCGU G AGUCGGGACUCAUCGAGAG U G CC GG^ CUAACC . 110 100 90 80 70 60