Proteins that bind this octamer have been purified , and cDNAs encoding octamer-binding proteins have been cloned .
proteins that bind this octamer have been purified , and cdnas encoding octamer-binding proteins have been cloned .
O O O O B-polynucleotide O O O O O B-DNA_family_or_group O B-protein_family_or_group I-protein_family_or_group O O O O