10 20 30 40 50 GACUUCAACAAGUCAAUC--| UUA A UAAUCU UGUACUCUUUGG CAGUUGUUCAACC GUUAC A ACGUGGGAAACC GUCAACAAGUUGG CAAUG A AGUUACUUUACAAAGAUGAA^ CAA C UUAAAC . 110 100 90 80 70 60