Its N-terminal 125 amino acids function as an independent transcriptional activation domain .
its n-terminal 125 amino acids function as an independent transcriptional activation domain .
O B-protein_domain_or_region I-protein_domain_or_region I-protein_domain_or_region I-protein_domain_or_region O O O B-protein_domain_or_region I-protein_domain_or_region I-protein_domain_or_region I-protein_domain_or_region O