LBF3 , LBF5 , LBF6 , or LBF7 may also be involved , since their binding sites also contribute to EBNA-2 responsiveness .
lbf3 , lbf5 , lbf6 , or lbf7 may also be involved , since their binding sites also contribute to ebna-2 responsiveness .
B-protein_molecule O B-protein_molecule O B-protein_molecule O O B-protein_molecule O O O O O O O O O O O O B-protein_molecule O O