10 20 30 40 50 AAGAUAAUUGGAAAAAU--| U A AG GU GUGU UUUGCAA CAGUUAAUGGGU UA UCUA GUCACA \ AAACGUU GUUAGUUACUCA AU AGAU CAGUGU G UUAAGAAGAACUUCUAAAC^ C C CU -- UUAC 110 100 90 80 70 60