10 20 30 40 50 UGCGUGCUGCUCCGUGU--- U C GC----| UCGCAU GGUGC UGAGGAGAGGCUG CCGUG GCGU U CUACG ACUUCUCUCCGGC GGCAC CGCA C UGUGUACGUUCCGCCCUCGA - U AUAACA^ GUACUA 110 100 90 80 70 60