tokens: This is the first demonstration of a specific interaction with PU . 1 on a myeloid PU . 1 binding site .
folded_tokens: this is the first demonstration of a specific interaction with pu . 1 on a myeloid pu . 1 binding site .
labels: O O O O O O O O O O B-protein_molecule I-protein_molecule I-protein_molecule O O B-DNA_domain_or_region B-protein_molecule I-protein_molecule I-protein_molecule O O O