10 20 30 40 50 60 CCUCCCUCCCCCGCCCC--| C CU U A G AGUCUCU GGGC GCGGCUC GAU GUCCA AC CAAUUCUCG A CCCG UGCCGAG CUG CAGGU UG GUUGAGAGC G AGAGGGGGAGCUCCAAACC^ C CC - C A CGGUCUC 120 110 100 90 80 70