10 20 30 40 50 AACGGGAAUACAGAAUA--| C U UU C A UUCUAC GACU UUCAUG GACUGAUUUCA UGG GC UAGA \ UUGA AGGUAU UUGACUAAAGU ACC CG AUCU A UUAAAUGACUCAACUGAAA^ A U UU A - UUAAAA . 110 100 90 80 70