The class II trans-activator ( CIITA ) is a bi- or multi-functional domain protein which plays a critical role in the expression of MHC class II genes .
the class ii trans-activator ( ciita ) is a bi- or multi-functional domain protein which plays a critical role in the expression of mhc class ii genes .
O B-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O O O O O O O O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O