10 20 30 40 50 60 CUGAAGAAGUUUAGACA--| AUU A C G AA AAAAGGAAUC UGGCA GAAUC GUGCC AGU UUUG AAAG \ ACCGU CUUAG CACGG UCA AAAC UUUC C CACUCCACACACCACCGCC^ CGC C A - CC ACCUGAUUCU 120 110 100 90 80 70