4238
The Ca2+ /calmodulin-dependent protein kinase (CaMK) type IV/Gr is selectively expressed in T lymphocytes and is activated after signaling via the T cell antigen receptor ( TCR ), indicating that it mediates some of the Ca(2+)-dependent transcriptional events that follow TCR engagement .
 ( protein: TCR, None) , ( protein: TCR, None) , ( protein: T cell antigen receptor, None) , ( cell type: T lymphocytes, None) , ( protein: Ca2+ /calmodulin-dependent protein kinase (CaMK) type IV/Gr, 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: TCR, None) , ( protein: TCR, None) , ( protein: T cell antigen receptor, None) , ( cell type: T lymphocytes, None) , ( protein: Ca2+ /calmodulin-dependent protein kinase (CaMK) type IV/Gr, None) 