10 20 30 40 50 CCGAUGAGGAUCGCGAG--| C C UC- G A UU CUCAC GUUG UG GCUGCAACAGUUA CU GCA \ GAGUG CAGU AC CGACGUUGUCAAU GA CGU U AUCUACGACUUUAUGACUG^ U - CUA G G UA . 100 90 80 70 60