A regulatory element in the CD95 ( APO-1/Fas ) ligand promoter is essential for responsiveness to TCR -mediated activation .
a regulatory element in the cd95 ( apo-1/fas ) ligand promoter is essential for responsiveness to tcr -mediated activation .
O B-DNA_family_or_group I-DNA_family_or_group O O B-protein_molecule O B-protein_molecule O O O O O O O O B-protein_family_or_group O O O