10 20 30 40 50 UUGGGAACAGAGUUGAGCU- C-| GUA GGUAUUU GC ACGUGAU GGUAGUUUCAUGUUGUUGGG \ CG UGCAUUA CCGUCAAGGUGCAACGACUC A GGAACACAUACUGCAGCUGU AC^ GAA ACAGGGU . 110 100 90 80 70