13123
This study shows that expression of LMP1 activates transcription from p50/p65- and c-Rel- responsive promoters , and that this activity can be completely inhibited by expression of a dominant inhibitory IkappaB mutant .
 ( protein: LMP1, None) , ( protein: inhibitory IkappaB mutant, 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: LMP1, None) , ( protein: inhibitory IkappaB mutant, None) 