10 20 30 40 50 AGACACAGACAGACAGA--| G C A UAACAGCA CAGUGCA UCA CCAUAAAGUAG AAGCACUAC \ GUCAUGU AGU GGUAUUUCAUC UUUGUGAUG A CCACACAGAGGCUUCGGGU^ G A C UGGGAUGU 110 100 90 80 70 60