tokens: Our investigation of the human TCR beta gene uncovers a surprisingly complex and tissue-specific structure at the TCR Vbeta 8 . 1 promoter .
folded_tokens: our investigation of the human tcr beta gene uncovers a surprisingly complex and tissue-specific structure at the tcr vbeta 8 . 1 promoter .
labels: 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 O O O 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 I-DNA_domain_or_region I-DNA_domain_or_region O