10 20 30 40 50 UGAAAAGAAUUUCCAGAAAUUCCUC-- A G U-| G UAUGAU AUGGC CG CAAAGU GC GUGAUGUG U UACCG GC GUUUCG CG CACUAUAC G NNNNNNNNNGAGACGACACGAACCACA A A UC^ A UGAACU . 110 100 90 80 70 60