10 20 30 40 50 UUUGAGCGCUCAGUGAC---| U GAA - A C CUGACA AGAUCU CG GCAUCUU ACC GGCAG AUUAGA \ UCUGGG GC UGUAGAA UGG CUGUC UAAUCU A GGUCUAUAACAACGUAAGUG^ - AUC A A A UCAAUA . 110 100 90 80 70 60