10 20 30 40 50 GCAUGUUCUAUUUCUCU---| U CG U UGAACU CCUC GUGCGGGAAGGAGAGC UUCUGUGAC GU U GGAG CGCGCCUUUUCUCUCG GAGGUACUG CA C CAACAAACAACAACAAAACC^ - UU U CAAGGG . 110 100 90 80 70 60