tokens: The AP-1 binding proteins contained c-Jun , Jun-D , and Fra-1 , but marginal amounts of Jun-B and c-Fos .
folded_tokens: the ap-1 binding proteins contained c-jun , jun-d , and fra-1 , but marginal amounts of jun-b and c-fos .
labels: O B-protein_molecule O O O B-protein_molecule O B-protein_molecule O O B-protein_molecule O O O O O B-protein_molecule O B-protein_molecule O