10 20 30 40 50 GACCUCAACACUUCAAUC--| U UUA CA UAAUCU UGU CUCUUUGG CAGUUGUUCAAC GUUAC A ACG GGGAAACC GUCAACAAGUUG CAAUG C AGUUUCUUUACAAAAGUGAA^ U CAA AC UUAAUC . 110 100 90 80 70 60