10 20 30 40 50 60 GGGAUUGGCUGGAAGCA--| U ACA GAACAUC GUUGUCAUGUG CUGCCUGUCU CUUGCUGUGCA \ CAACAGUACAC GACGGACAGA GGACGACAUGU C ACCAACAGUAAGUCCGACC^ U CAC CCACUCU 120 110 100 90 80 70