4022
The common target of CsA and FK506 is calcineurin , a Ca2+/calmodulin-regulated, serine/threonine-specific protein phosphatase that regulates the nuclear import of a transcription factor , NF-AT , required for expression of T cell activation genes .
 ( protein: calcineurin, None) , ( protein: transcription factor, None) , ( DNA: T cell activation genes, None) , ( protein: Ca2+/calmodulin-regulated, serine/threonine-specific protein phosphatase, None) , ( protein: NF-AT, 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: calcineurin, None) , ( protein: transcription factor, None) , ( DNA: T cell activation genes, None) , ( protein: Ca2+/calmodulin-regulated, serine/threonine-specific protein phosphatase, None) , ( protein: NF-AT, None) 