7899
A transfected IFN-beta promoter responded to EBNA2 activation, and a sequence closely resembling a RBP-Jkappa binding site was pinpointed as a potential target of EBNA2 activity .
 ( protein: EBNA2, None) , ( DNA: RBP-Jkappa binding site, None) , ( protein: EBNA2, 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: EBNA2, None) , ( DNA: RBP-Jkappa binding site, None) , ( protein: EBNA2, None) 