Therefore , Tax appears to inhibit the interaction of Sp family members with the pp repeat .
therefore , tax appears to inhibit the interaction of sp family members with the pp repeat .
O O B-protein_molecule O O O O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O B-DNA_domain_or_region I-DNA_domain_or_region O