ATF/CREB and Sp family members interacted with the 21 bp repeats to form DNA-protein complexes common to all cell types examined .
atf/creb and sp family members interacted with the 21 bp repeats to form dna-protein complexes common to all cell types examined .
B-protein_family_or_group O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-protein_complex I-protein_complex O O O O O O O