tokens: The transcription factors Sp1 and PU . 1 prime the CD11b promoter , but the nature of the factors responsible for its inducible expression are unknown .
folded_tokens: the transcription factors sp1 and pu . 1 prime the cd11b promoter , but the nature of the factors responsible for its inducible expression are unknown .
labels: O B-protein_family_or_group I-protein_family_or_group B-protein_molecule O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule O O O O O O O O O O O O O O O O