10 20 30 40 50 GCCGCAUGCUGCCCUCGC-- C GC----| UCCGCAU GGUGUCGAGGAGAGGUUG CCGUG GCG A CCGCGGCUUCUCUCCAGC GGCAC CGC G CCCUCGCACGUCCGCCGCGC U AUAACA^ CGUCCUC 110 100 90 80 70 60