tokens: The transactivator CIITA behaves as a master controller of constitutive and inducible MHC class II gene activation , but its exact mechanism of action is not known .
folded_tokens: the transactivator ciita behaves as a master controller of constitutive and inducible mhc class ii gene activation , but its exact mechanism of action is not known .
labels: O B-protein_family_or_group B-protein_molecule O O O O O O O O O B-cell_type I-cell_type I-cell_type O O O O O O O O O O O O O