tokens: CD3 -epsilon expression is controlled by a downstream T lymphocyte-specific enhancer element .
folded_tokens: cd3 -epsilon expression is controlled by a downstream t lymphocyte-specific enhancer element .
labels: B-protein_molecule 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 O