Transcription factors , such as NF kappa B and AP-1 , are activated upon stimulation of the cells with several chemoattractants at physiologically relevant concentrations .
transcription factors , such as nf kappa b and ap-1 , are activated upon stimulation of the cells with several chemoattractants at physiologically relevant concentrations .
B-protein_family_or_group I-protein_family_or_group O O O B-protein_complex I-protein_complex I-protein_complex O B-protein_molecule O O O O O O O O O O O O O O O O