Activation of T lymphocytes to produce cytokines is regulated by the counterbalance of protein- tyrosine kinases and protein- tyrosine phosphatases , many of which have a high degree of substrate specificity because of physical association with their targets .
activation of t lymphocytes to produce cytokines is regulated by the counterbalance of protein- tyrosine kinases and protein- tyrosine phosphatases , many of which have a high degree of substrate specificity because of physical association with their targets .
O O B-cell_type I-cell_type O O B-protein_family_or_group O O O O O O B-protein_family_or_group B-amino_acid_monomer O O O B-amino_acid_monomer O O O O O O O O O O O O O O B-other_name I-other_name O O O O