10 20 30 40 50 AGCGUGUGGGAGGUCUC---| G UG U CU - AUG CUGUUG UGU U GGCG CUGU GCCC GC CCUGCCUCU \ ACG G CCGU GACG CGGG CG GGACGGAGG C CAGGGUGCGUCCUCGGCGAG^ - GU C UC U G-- AAGUCU . 110 100 90 80 70