tokens: We report the characterization of the cis- and trans- acting elements involved in the tissue-specific activity of the L gene erythroid promoter .
folded_tokens: we report the characterization of the cis- and trans- acting elements involved in the tissue-specific activity of the l gene erythroid promoter .
labels: O O O O O O O O O O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O