CD28 -dependent induction of c-jun expression requires protein tyrosine kinase activity , but does not depend on activation of a phorbol ester -responsive protein kinase C or elevation of cytosolic calcium .
cd28 -dependent induction of c-jun expression requires protein tyrosine kinase activity , but does not depend on activation of a phorbol ester -responsive protein kinase c or elevation of cytosolic calcium .
B-protein_molecule O O O B-DNA_domain_or_region O O B-protein_molecule I-protein_molecule I-protein_molecule O O O O O O O O O O B-other_organic_compound I-other_organic_compound O O O O O O O B-atom I-atom O