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