These promoter and enhancer regions are mainly activated by the transcription factor nuclear factor of activated T cells ( NFAT ) .
these promoter and enhancer regions are mainly activated by the transcription factor nuclear factor of activated t cells ( nfat ) .
O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O B-protein_family_or_group I-protein_family_or_group B-protein_family_or_group I-protein_family_or_group O O B-cell_type I-cell_type O B-protein_family_or_group O O