10 20 30 40 50 CACCCCGUGAGACUGACA--| U CA CC A GUGGGC GGCUUG UGGA CUCUUUC UGUUGCACU CU C CCGGGC GUCU GGGAAAG GUAACGUGA GA U CAAGGAGUCCGAGGAAUCGA^ U AC UA C AGGGUC . 110 100 90 80 70 60