tokens: Utilizing transient transfection assays in the fetal erythroid cell line , K562 , we have shown that the core enhancer of hypersensitivity site 2 can preferentially interact with the proximal gamma-promoter in the absence of the SSE , completely silencing a linked beta-promoter .
folded_tokens: utilizing transient transfection assays in the fetal erythroid cell line , k562 , we have shown that the core enhancer of hypersensitivity site 2 can preferentially interact with the proximal gamma-promoter in the absence of the sse , completely silencing a linked beta-promoter .
labels: O B-other_name I-other_name I-other_name O O B-cell_line I-cell_line I-cell_line I-cell_line O B-cell_line O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O B-DNA_domain_or_region O O O O B-DNA_domain_or_region I-DNA_domain_or_region O