955
No significant differences between EBNA-2 -positive and EBNA-2 -negative nuclear extracts could be seen in the gel retardation assay under conditions that clearly showed binding of EBNA-2A to the TP1 promoter .
 ( protein: EBNA-2, None) , ( protein: EBNA-2A, None) , ( DNA: TP1 promoter, None) , ( protein: EBNA-2, 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: EBNA-2, None) , ( protein: EBNA-2A, None) , ( DNA: TP1 promoter, None) , ( protein: EBNA-2, None) 