10 20 30 40 50 GACGCGUCAAUCGAUUUU--| A UU A CC AAGA GUGUUCUGUGG AGGUC GAUGGG GCAA UUG U CGUAGGAUAUC UCCGG CUGCUC CGUU AAC A AGGACAGUUGCCAACAGACC^ G CC A A- CUGU 110 100 90 80 70 60