10 20 30 40 50 UUCCACCAUGUGACAUG--| GC C A UAGACAGC CAGUGCA CA CCAUAAAGUAG AAGCACUAC A GUCAUGU GU GGUAUUUCAUC UUUGUGAUG C ACUCAACAGGGCAUCUCGG^ GA A C UCGCAAGU . 110 100 90 80 70 60