Alone , PMA and calcium ionophore A23187 did not affect , but together stimulated , like phytohaemagglutinin ( PHA ) , leucine and , in particular , thymidine incorporation .
alone , pma and calcium ionophore a23187 did not affect , but together stimulated , like phytohaemagglutinin ( pha ) , leucine and , in particular , thymidine incorporation .
O O B-other_organic_compound O B-other_organic_compound I-other_organic_compound I-other_organic_compound O O O O O O O O O B-protein_molecule O B-protein_molecule O O B-amino_acid_monomer O O O O O B-nucleotide O O