tokens: To confirm the importance of the three cis-acting elements in the perforin gene expression , point mutation was introduced again to each proximal GC box , EBS , and GT box of PFP5a .
folded_tokens: to confirm the importance of the three cis-acting elements in the perforin gene expression , point mutation was introduced again to each proximal gc box , ebs , and gt box of pfp5a .
labels: O O O O O O O B-DNA_family_or_group I-DNA_family_or_group O O B-protein_molecule O O O O O O O O O O B-DNA_domain_or_region B-DNA_domain_or_region I-DNA_domain_or_region O B-DNA_domain_or_region O O B-DNA_domain_or_region I-DNA_domain_or_region O B-DNA_molecule O