10 20 30 40 50 UUUUAGCUGAUUCACCUA--| U AAU C A UUCUA GUUUAGUGG AC ACCUCAGU UUUUCGG UG \ CAAGUCACU UG UGGAGUCA AAAGGUC AC U UAGUUUAUACACUUCAGACA^ U CGU U C UUAAA 110 100 90 80 70 60