tokens: Electrophoretic mobility shift assays show that the nucleoprotein complex formed on the upstream site ( NF kappa B1 ) contains the classical p50/p65 heterodimer .
folded_tokens: electrophoretic mobility shift assays show that the nucleoprotein complex formed on the upstream site ( nf kappa b1 ) contains the classical p50/p65 heterodimer .
labels: B-other_name I-other_name I-other_name I-other_name O O O B-protein_complex I-protein_complex O O O B-DNA_domain_or_region I-DNA_domain_or_region O B-protein_complex I-protein_complex I-protein_complex O O O B-protein_complex I-protein_complex I-protein_complex O