14771
A reporter gene under the control of a T-cell antigen receptor element was activated in Jurkat cells by antigen receptor triggering or by a combination of phorbol myristate acetate, which activates protein kinase C , and a calcium ionophore .
 ( cell line: Jurkat cells, None) , ( DNA: reporter gene, None) , ( protein: protein kinase C, None) , ( DNA: T-cell antigen receptor element, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( cell line: Jurkat cells, None) , ( DNA: reporter gene, None) , ( protein: protein kinase C, None) , ( DNA: T-cell antigen receptor element, None) 