10 20 30 40 50 CCGUCCCCCGGGGCCUU--| C C CCU C C GGUC CCGCUCUCGCC CGCGC AGCC CG ACAAA C C GGCGGGGGCGG GUGCG UCGG GC UGUUU G U CCACCCCCCGCGUCUGCCC^ A C CUU U A CGAC 110 100 90 80 70 60