10874
Epstein-Barr virus binding to CD21 activates the initial viral promoter via NF-kappaB induction .
 ( protein: CD21, None) , ( DNA: viral promoter, None) , ( protein: NF-kappaB, 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: CD21, None) , ( DNA: viral promoter, None) , ( protein: NF-kappaB, None) 