10 20 30 40 50 GUUGGAGCAAGAAGAUU--| C U GUUGUCU UCAGGCUGUGA CCUCU GAGGGAAGCACUUUCU \ AGUCUGGCAUU GGAGA UUUCCUUCGUGAAAGA G UUGAAGUGGCAACGAAAAG^ C U AAAAUAA 110 100 90 80 70 60