10 20 30 40 50 CAGCGAAUCCAGUUGUUG--| U GG CC UUAAUA CCCCUUG GA ACAUGCUUCCUUAUAU CCAUA \ GGGGAAC UU UGUGUGAAGGAAUGUA GGUAU C GUACACCAACCACGAGUAUA^ U GG A- UCACCA . 110 100 90 80 70