10 20 30 40 50 GUUUUAUUGUCUGUUGU--| A AA A GU GAUUC GAGCCUG UCC UAUUCCUU AGUAGGCAAA U \ CUCGGAU AGG AUGGGGAA UCGUCCGUUU A U AUUUGUGAAGUGUCCGGAU^ A AG C UG CACUU 110 100 90 80 70 60