In erythroid cells most of the transcription activity was contained in a 150 bp promoter fragment with binding sites for transcription factors AP2 , Sp1 and the erythroid-specific GATA-1 .
in erythroid cells most of the transcription activity was contained in a 150 bp promoter fragment with binding sites for transcription factors ap2 , sp1 and the erythroid-specific gata-1 .
O B-cell_type I-cell_type O O O B-other_name I-other_name O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-DNA_domain_or_region I-DNA_domain_or_region O B-protein_family_or_group I-protein_family_or_group B-protein_molecule O B-protein_molecule O O B-protein_molecule I-protein_molecule O