10 20 30 40 50 60 ACAGACACAGACAGACAG--| G C A UAACAGCA ACAGUGCA UCA CCAUAAAGUAG AAGCACUAC \ UGUCAUGU AGU GGUAUUUCAUC UUUGUGAUG A UGCCACACAGAGGCUUCGGG^ G A C UGGGAUGU 120 110 100 90 80 70