10 20 30 40 50 AGAGCUUCUGUGUGCAG--| U C U G A GUUCUGU GCGCGCC GGUC AGUGGUUCU AACA UUCA CA \ CGCGCGG CCAG UCACCAGGA UUGU AAGU GU A AACGACAGCGGCGACGGCA^ C A U A - UAACGCG . 110 100 90 80 70