10 20 30 40 50 UUCCGGAUCAAGAUCAG--| C CC A GA UUAAUG AGGCUCUGC CU GUGUUCAC GCG CCUUGAU \ UCCGAGGCG GA CGUAAGUG CGC GGAAUUA U CAGAAAGUUCACGUCGGCA^ A AC G AC ACAUAC 110 100 90 80 70 60