4202
Using a PKC -specific inhibitor , GF109203X , or PKC -depleted T cells , we found that a large part of the anti-CD3 -induced ERK activation is PKC dependent .
 ( cell line: PKC -depleted T cells, None) , ( protein: ERK, None) , ( protein: PKC, None) , ( protein: anti-CD3, None) , ( protein: PKC, None) , ( protein: PKC, 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: PKC -depleted T cells, None) , ( protein: ERK, None) , ( protein: PKC, None) , ( protein: anti-CD3, None) , ( protein: PKC, None) , ( protein: PKC, None) 