tokens: The EGR1 binding motif was shown to be necessary for stimulus-induced expression of a CD44 promoter-chloramphenicol acetyltransferase reporter construct in nontransformed B lymphocytes and was required for transactivation by an EGR1 expression vector in a B-cell line .
folded_tokens: the egr1 binding motif was shown to be necessary for stimulus-induced expression of a cd44 promoter-chloramphenicol acetyltransferase reporter construct in nontransformed b lymphocytes and was required for transactivation by an egr1 expression vector in a b-cell line .
labels: O B-protein_molecule O O O O O O O O B-other_name I-other_name O O B-protein_molecule B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O B-cell_type I-cell_type I-cell_type O O O O O O O B-protein_molecule O O O O B-cell_line I-cell_line O