10 20 30 40 50 AGAACUUCUGUGUGCAG--| U C U G A UUCUGU GCGCGCC GGUC AGUGGUUCU GACA UUCA CAG \ CGCGCGG CCAG UCACCAGGA UUGU AAGU GUU A GACGACAGCAGCGGCGGCA^ C A U A - AACACG . 110 100 90 80 70