10 20 30 40 50 UCCAACGUCGAGCGCGA- - C --| C C GUGAG CGGA CGA CCGAUGCCCU UUCAACGU GCAC GCU C GCUU GCU GGCUACGGGA AAGUUGUA CGUG CGA A UGCGCAGCUGCUACGACG G U AA^ A A GCGAG . 110 100 90 80 70 60