Surprisingly , G28-5 sFv was a potent CD40 agonist that rapidly crosslinked CD40 on the cell surface but did not crosslink CD40 -Ig in solution .
surprisingly , g28-5 sfv was a potent cd40 agonist that rapidly crosslinked cd40 on the cell surface but did not crosslink cd40 -ig in solution .
O O B-protein_molecule I-protein_molecule O O O B-protein_molecule O O O O B-protein_molecule O O B-cell_component I-cell_component O O O O B-protein_molecule O O O O