CD3 -epsilon expression is controlled by a downstream T lymphocyte-specific enhancer element .
cd3 -epsilon expression is controlled by a downstream t lymphocyte-specific enhancer element .
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