10 20 30 40 50 AUAUAAUAUACAUACAU--| G CA U AAAUUUGGUU AUAUAUA AUACA UAUGCGAUGU UGCUCA \ UAUAUAU UAUGU AUACGUUGUA ACGAGU C CUGUUAGUCACUACGAGUU^ A AC U CUUGAUAUAG . 110 100 90 80 70