2492
Our data also suggest that whilst NF-kappa B may be an essential component of LMP1 signal transduction , other cell-specific factors may be required to effect some functions of the viral protein .
 ( protein: NF-kappa B, None) , ( protein: LMP1, None) , ( protein: viral protein, None) , ( protein: cell-specific factors, 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: NF-kappa B, None) , ( protein: LMP1, None) , ( protein: viral protein, None) , ( protein: cell-specific factors, None) 