Surprisingly , while the addition of phytohemagglutinin further enhanced the induction of AP1 , the addition of PMA inhibited it .
surprisingly , while the addition of phytohemagglutinin further enhanced the induction of ap1 , the addition of pma inhibited it .
O O O O O O B-protein_molecule O O O O O B-protein_molecule O O O O B-other_organic_compound O O O