An isotype-specific activator of major histocompatibility complex ( MHC ) class II genes that is independent of class II transactivator .
an isotype-specific activator of major histocompatibility complex ( mhc ) class ii genes that is independent of class ii transactivator .
O B-other_name I-other_name O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O