An AP1 binding site upstream of the kappa immunoglobulin intron enhancer binds inducible factors and contributes to expression .
an ap1 binding site upstream of the kappa immunoglobulin intron enhancer binds inducible factors and contributes to expression .
O B-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 I-DNA_domain_or_region O B-protein_family_or_group I-protein_family_or_group O O O O O