The immunosuppressant drug cyclosporin A blocks a calcium -dependent signal from the T-cell receptor ( TCR ) that normally leads to T-cell activation .
the immunosuppressant drug cyclosporin a blocks a calcium -dependent signal from the t-cell receptor ( tcr ) that normally leads to t-cell activation .
O B-other_organic_compound I-other_organic_compound B-other_organic_compound I-other_organic_compound O O B-atom O O O O B-protein_family_or_group I-protein_family_or_group O B-protein_family_or_group O O O O O B-other_name I-other_name O