10 20 30 40 50 CUUCAGGAUGAUCUUUCAAA-- U -| C CCGC CUCGUA UGUU GACAUUUUU CCAG AC GGUGAGA \ ACAG CUGUGAAAA GGUC UG CCGCUCU A UCUUGACGACAACGGCAUUCUC U G^ A CUU- AUCAUU 110 100 90 80 70 60