tokens: When ligated to the murine c-fos promoter , however , the proIL-1 beta enhancer was inducible in phorbol myristate acetate -stimulated HeLa cells , suggesting the existence of a proIL-1 beta promoter-proximal requirement for tissue specificity .
folded_tokens: when ligated to the murine c-fos promoter , however , the proil-1 beta enhancer was inducible in phorbol myristate acetate -stimulated hela cells , suggesting the existence of a proil-1 beta promoter-proximal requirement for tissue specificity .
labels: O O O O B-DNA_domain_or_region B-DNA_domain_or_region O O O O O B-protein_molecule I-protein_molecule O O O O B-other_organic_compound I-other_organic_compound I-other_organic_compound O B-cell_type I-cell_type O O O O O O B-protein_molecule I-protein_molecule O O O B-other_name I-other_name O