10 20 30 40 50 GACGAGAAGAGUUGCGU--| GUG C A CGU GACAUACCU UCUGCCAC UGUAUUUCU UCA \ CUGUGUGGG GGAUGGUG ACAUGAAGA AGU C AUUCGGCGGUAACAGUUAG^ AAG A A AGA . 100 90 80 70 60