To determine why alveolar macrophages do not express AP-1 DNA binding activity , we first showed that there was not a decrease in expression of the FOS and JUN proteins that make up the AP-1 complex .
to determine why alveolar macrophages do not express ap-1 dna binding activity , we first showed that there was not a decrease in expression of the fos and jun proteins that make up the ap-1 complex .
O O O B-cell_type I-cell_type O O O B-protein_molecule O O O O O O O O O O O O O O O O O O O O O O O O O B-protein_molecule O O