Because transgene expression was regulated by the proximal promoter of the murine lck gene and this promoter is inactivated in T cells that exit the thymus , the mutant hCaMKIV is not present in peripheral T cells .
because transgene expression was regulated by the proximal promoter of the murine lck gene and this promoter is inactivated in t cells that exit the thymus , the mutant hcamkiv is not present in peripheral t cells .
O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O B-cell_type I-cell_type O O O B-body_part O O B-protein_molecule I-protein_molecule O O O O B-cell_type I-cell_type I-cell_type O