10 20 30 40 50 60 ACUCCUGUCUUGGAAAU--| U AA GU G A CUUUGU GC AAGCACUUAC CU UUGCAGA GA ACUGAGA \ CG UUCGUGAAUG GA AACGUCU CU UGACUCU A GACAGGAGACUCCCUGAAC^ U AA -- A C ACAUCA . 110 100 90 80 70