4408
However, more recent studies in human T cell lines have suggested that the N-terminal domain is not necessary for steroid-regulated apoptosis and that GR -mediated transrepression may be the more critical mechanism.
 ( protein: N-terminal domain, None) , ( cell line: T cell lines, None) , ( cell line: human T cell lines, None) , ( protein: 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: N-terminal domain, None) , ( cell line: T cell lines, None) , ( cell line: human T cell lines, None) , ( protein: GR, None) 