Pertussis toxin blocked FMLP -induced activation of the p42/44 ( ERK ) MAPk cascade , but not that of p38 MAPk .
pertussis toxin blocked fmlp -induced activation of the p42/44 ( erk ) mapk cascade , but not that of p38 mapk .
B-protein_molecule I-protein_molecule O B-protein_molecule O O O O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O O O O O O B-protein_molecule I-protein_molecule O