10 20 30 40 50 UUGGCCAUUGGUGAACUG-- U G GC --| U G UGCA UGUG AAA U CUGUCA AGCUGA UAAGUAUU A A ACAC UUU G GACAGU UCGACU AUUCAUAA U C CCAACGUACACAACAAGUCA C G UU CU^ U G AGCA . 110 100 90 80 70 60