10 20 30 40 50 60 UGUGCAACUGAGAAGUCA- A GC -- -| A UAAGUGCA GC GCAUUU CUC GUACCAGA AGUGCAUU UACA \ CG UGUAAA GAG UAUGGUCU UUACGUAA AUGU A CACAUGUUGUCCACAAAUC G A- UG A^ - CAAAAUAU 120 110 100 90 80 70