10 20 30 40 50 60 GAUUCGAAUACAGGCUA- -| G A UU GC G UUAAAGGA CCGA ACU CCG AGGUG UG CAUCUGGU CAUG \ GGCU UGG GGC UCUAC AC GUAGAUCA GUAC A UGGGUUGCUUCUGCUUGU A^ - C UC AU - UGGAAACU 120 110 100 90 80 70