10 20 30 40 50 CAUUCAGCCAUUCAGUG--| G A GG U UGAA GUGUACA UGCCUUUC CAG AGGUG CAUUUAUG C UACAUGU AUGGGAAG GUC UCCAC GUAAAUAU U UGGUGUAUACGUCACGUAC^ A C UU U CAAA 110 100 90 80 70 60