tokens: Altered DNA-binding specificity mutants of EKLF and Sp1 show that EKLF is an activator of the beta-globin locus control region in vivo .
folded_tokens: altered dna-binding specificity mutants of eklf and sp1 show that eklf is an activator of the beta-globin locus control region in vivo .
labels: B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O B-protein_molecule O O O O B-protein_molecule O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O