10 20 30 40 50 CACUUGCCGUCUGAAGG---| CCCU C UC U C- UC GUGUAAA GC GCUG UG CUUCAU CCAC GGA CU \ CG CGAU AC GAAGUA GGUG CCU GA U GGGAACCAUCCACGAGUGUC^ AGU- U GU C AC UA CCUAAUA . 110 100 90 80 70 60