Strict dependence of HS I activity on a GATA site implies that assembly of a protein complex containing a GATA-factor , presumably GATA-1 or GATA-2 , is critical to activating or maintaining its function .
strict dependence of hs i activity on a gata site implies that assembly of a protein complex containing a gata-factor , presumably gata-1 or gata-2 , is critical to activating or maintaining its function .
O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O B-protein_family_or_group O O B-protein_molecule O B-protein_molecule O O O O O O O O O O