10 20 30 40 50 UAAACGUAACAAAAACU----| ACG UA A AG UUAUAAU GGUUU CCA AGCG GGUAU AGUUCCUACG \ CCGAG GGU UCGU CCAUA UCAAGGAUGU A GAAUAAACUUUCAACAAAUAA^ A-- UC G CU CUAUUAU . 110 100 90 80 70