8957
Furthermore, a truncated form of NFAT1 acts as a dominant-negative, reducing IL-4 promoter activity in primed CD4 T cells and confirming the importance of endogenous NFAT to increased IL-4 gene expression by effector T cells.
 ( protein: IL-4, None) , ( protein: IL-4, None) , ( protein: NFAT1, None) , ( protein: endogenous NFAT, None) , ( cell type: CD4 T cells, None) , ( DNA: IL-4 promoter, 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: IL-4, None) , ( protein: IL-4, None) , ( protein: NFAT1, None) , ( protein: endogenous NFAT, None) , ( cell type: CD4 T cells, None) , ( DNA: IL-4 promoter, None) 