10 20 30 40 50 CGCCGCGACCGGACCGU--| CGACG U GAGUC GGCGGACGGG GAGCCGGGAUUGGAACCU GG G UCGUCUGCCC CUCGGCCCUAGCCUUGGG CC G UAGAGGGGUUCCAGUUGUG^ ACCGG U AGGGA . 110 100 90 80 70 60