2897
Treatment of T cells with the protein kinase C activator PMA in combination with Ca2+ ionophores mimics this process, and the two agents are often substituted for TCR stimulation , bypassing the TCR .
 ( protein: protein kinase C, None) , ( cell type: T cells, None) , ( protein: TCR, None) , ( protein: TCR, 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:
 ( protein: protein kinase C, None) , ( cell type: T cells, None) , ( protein: TCR, None) , ( protein: TCR, None) 