3660
oriP is essential for EBNA gene promoter activity in Epstein-Barr virus-immortalized lymphoblastoid cell lines .
 ( DNA: oriP, None) , ( DNA: EBNA gene, None) , ( cell line: Epstein-Barr virus-immortalized lymphoblastoid cell lines, 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:
 ( DNA: oriP, None) , ( DNA: EBNA gene, None) , ( cell line: Epstein-Barr virus-immortalized lymphoblastoid cell lines, None) 