tokens: In vitro , the ICAM-1 kappa B site appeared to bind RelA and c-Rel homodimers as well as heterodimers with NF-kappa B1 , but weakly NF-kappa B1 homodimers .
folded_tokens: in vitro , the icam-1 kappa b site appeared to bind rela and c-rel homodimers as well as heterodimers with nf-kappa b1 , but weakly nf-kappa b1 homodimers .
labels: O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O B-protein_molecule O B-protein_complex I-protein_complex O O O O O B-protein_subunit I-protein_subunit O O O B-protein_complex I-protein_complex I-protein_complex O