tokens: The T-cell receptor ( TCR ) beta-chain promoters have been characterized as nonstructured basal promoters that carry a single conserved ubiquitous cyclic AMP-responsive element .
folded_tokens: the t-cell receptor ( tcr ) beta-chain promoters have been characterized as nonstructured basal promoters that carry a single conserved ubiquitous cyclic amp-responsive element .
labels: O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region 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