10 20 30 40 50 CGGACAGGGCAAGCUCG- ---| ACA U CU CU U UGGU GCG GCACAG GCA UCGACG GCUGG UACG GG \ CGC UGUGUU CGU AGUUGC UGACC GUGC CU U AUAGCCAGCGACAUUAAG AGA^ GA- U AG U- - AUAG . 110 100 90 80 70