10 20 30 40 50 UGUAUUACGGUACCAAA--| U AG UG UU - U GGGCUU CGCCAGUG UG AGG GAGAC GG GCAAU GCU \ GUGGUCAU AC UCU CUCUG UC CGUUA CGG C AUCUAAGGUCCUUCGCAGU^ U AG GU U- A - GAGGAC . 110 100 90 80 70