10 20 30 40 50 CCAUAUUCAACCACUGAG--| G A UGUA UGUGCA UGCUUUUC CAAGAAAGUGUCAUUCAUG C ACAUGU ACGAGAAG GUUCUUUUACGGUGAGUAU U UGGUGUAUUCGUACUAUACG^ A C AAAG 110 100 90 80 70 60