The proenkephalin promoter contains a sequence GGGGACGTCCCC , named B2 , which is similar to the kappa B sequence GGGGACTTTCC , the binding site of the transcription factor nuclear factor ( NF ) -kappa B .
the proenkephalin promoter contains a sequence ggggacgtcccc , named b2 , which is similar to the kappa b sequence ggggactttcc , the binding site of the transcription factor nuclear factor ( nf ) -kappa b .
O B-peptide O O O O B-polynucleotide O O B-DNA_domain_or_region O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region B-polynucleotide O O O O O O B-other_name O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O