10 20 30 40 50 CGCGGCGGAGCGCGGAC--| G C U G A UUCUGU GC CGCCGGGUC AGUGGUUCU AACA UUCA CAG \ CG GCGGCCCAG UCACCAGGA UUGU AAGU GUU A GACAGCGGCGGCGUCGGUC^ G A U A - AACGCG . 110 100 90 80 70