10 20 30 40 50 UCGUUAAGCAGAGACCCAAAC--| G - C U GUGAU CCCAGGUCU CU GACUCCUAGU CAG GCUC G GGGUCCGGA GG CUGGGGAUCA GUC CGGG G GUCUCUCCGACCGCUGUAAGUUU^ - U A C UGGUC 110 100 90 80 70 60