tokens: An analysis of the immediate promoter of the human erythroid ALAS gene revealed several putative erythroid-specific cis-acting elements including both a GATA-1 and an NF-E2 binding site .
folded_tokens: an analysis of the immediate promoter of the human erythroid alas gene revealed several putative erythroid-specific cis-acting elements including both a gata-1 and an nf-e2 binding site .
labels: O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O B-DNA_domain_or_region O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O