10 20 30 40 50 60 AAGUCCUGGGCCGUCUC----| ACCU AG GA U GAGGUAGU GGA GG CGGGGGGGCAG GGGGC CAGG G CCU CC GCCUUCCCGUC UCCCG GUCC U UUGACCCGUGUCACACAGGCC^ GU-- CU UC - CCGAUGUG . 110 100 90 80 70