10 20 30 40 50 UUUGGUGUGUGCAGAGU---| G C U UAGUAU CGCU CUGUG CCUAUGGCUUUU AUUCCUAUGUGA \ GUGG GACAU GGGUACCGAAAG UGGGGAUACACU U CAUUAACGUCUACGCAAAGA^ - A - CCGGUU . 110 100 90 80 70