3450
Calcineurin , a Ca2+ /calmodulin-dependent protein phosphatase , is the FK-506 -and CsA -sensitive enzyme required for TcR mediated activation of the IL-2 promoter .
 ( DNA: IL-2 promoter, None) , ( protein: Calcineurin, None) , ( protein: Ca2+ /calmodulin-dependent protein phosphatase, 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:
 ( DNA: IL-2 promoter, None) , ( protein: Calcineurin, None) , ( protein: Ca2+ /calmodulin-dependent protein phosphatase, None) 