Transcription factor activation and gene transcription were studied by gel-shift assays and Northern blot analysis , respectively .
transcription factor activation and gene transcription were studied by gel-shift assays and northern blot analysis , respectively .
B-protein_family_or_group I-protein_family_or_group O O O O O O O B-other_name I-other_name O B-other_name I-other_name I-other_name O O O