tokens: Exposure of certain cell types to bacterial lipopolysaccharide ( LPS ) leads to activation of nuclear factor kappa B ( NF-kappa B ) , an inducible transcription factor .
folded_tokens: exposure of certain cell types to bacterial lipopolysaccharide ( lps ) leads to activation of nuclear factor kappa b ( nf-kappa b ) , an inducible transcription factor .
labels: O O O O O O B-lipid I-lipid O B-lipid O O O O O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule I-protein_molecule O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O