Factors binding to site C ( nt 4681 to 4701 ) had a DNA-binding specificity similar to that of factors binding to site B , except for PU . 1/Spi-1 .
factors binding to site c ( nt 4681 to 4701 ) had a dna-binding specificity similar to that of factors binding to site b , except for pu . 1/spi-1 .
O O O B-DNA_domain_or_region I-DNA_domain_or_region O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O B-other_name I-other_name O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O B-protein_molecule I-protein_molecule I-protein_molecule O