tokens: Thus , c-Fos /c-Jun heterodimers might contribute to the repression of DRA gene expression .
folded_tokens: thus , c-fos /c-jun heterodimers might contribute to the repression of dra gene expression .
labels: O O B-protein_molecule B-protein_molecule O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O