10 20 30 40 50 UCGGACACGUAAACCUC--| U UGA UU UUAUA UUUU CCGUCAUGU GGAGUUAAU GCGUGUUU U AAAA GGUAGUACA UCUCAAUUA UGCACAAA U UAGCAGUAAGCAACGAGCG^ U UGG CC UUAGU . 110 100 90 80 70 60