The tissue-specific core promoter structure is apparently conserved in other T-cell-specifically expressed genes such as the CD4 gene .
the tissue-specific core promoter structure is apparently conserved in other t-cell-specifically expressed genes such as the cd4 gene .
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 B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O O O B-DNA_domain_or_region I-DNA_domain_or_region O