10 20 30 40 50 60 UGUCGAGUCAUUUCCAAU--| C C C UCUCU UCCCA UCA GG GACUCUAUGGA AUAU CCAGAAUG U GGU CU UUGAGAUACCU UAUG GGUCUUAC C UUGGUGAAGACAUAAAAAAU^ A U A UGU-- UUCUU . 110 100 90 80 70