10 20 30 40 50 AGUCAUCAUUCAGAAAU-- GU AA A -| C AUGUGG G AUACAGGA UUG CCUAU GAA UGACAGACA \ C UAUGUCUU AAC GGAUG CUU ACUGUCUGU C ACUAAAAAUUUCAUCGUCU UG GC C U^ U UUGAAU . 110 100 90 80 70 60