tokens: The cAMP-response element CRE , TGACGTCA , present in the 21 base-pair sequence , appears to be essential for specific protein- TRE -DNA interactions because mutation of the two G 's destroys this complex .
folded_tokens: the camp-response element cre , tgacgtca , present in the 21 base-pair sequence , appears to be essential for specific protein- tre -dna interactions because mutation of the two g 's destroys this complex .
labels: O B-DNA_domain_or_region I-DNA_domain_or_region B-DNA_domain_or_region O B-polynucleotide O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O B-other_name B-DNA_domain_or_region O O O B-other_name O O O B-nucleotide O O O O O