10 20 30 40 50 CGCGGCGGAGCGCGGAC--| G C U G A GUUCUGU GC CGCCGGGUC AGUGGUUCU AACA UUCA CA \ CG GCGGCCCAG UCACCAGGA UUGU AAGU GU A GACAGCGGCGGCGUCGGUC^ G A U A - UAACGCG . 110 100 90 80 70