420
The activation of NFAT by TCR signals has been well described for interleukin-2 ( IL-2 ) and IL-4 gene transcription in T cells .
 ( protein: NFAT, None) , ( protein: TCR, None) , ( protein: IL-2, None) , ( cell type: T cells, 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: NFAT, None) , ( protein: TCR, None) , ( protein: IL-2, None) , ( cell type: T cells, None) 