10 20 30 40 50 GACAGAAGUUCUAAUAUC--| CU U GU CCAUGUU UCAUUCC CAGUGUUGAAACAA CUCU UGAA \ AGUAAGG GUUACAACUUUGUU GAGG ACUU A AUCUGUUGUCAUCGUAGAAU^ AG U UC GAAGGAC . 110 100 90 80 70