3663
In this study, the region upstream of Cp was analyzed for the presence of cis elements involved in regulating the activities of the EBNA gene promoters in established in vitro immortalized lymphoblastoid cell lines ( LCLs ).
 ( cell line: in vitro immortalized lymphoblastoid cell lines, None) , ( cell line: LCLs, None) , ( DNA: EBNA gene promoters, None) , ( DNA: promoters, None) , ( DNA: Cp, 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:
 ( cell line: in vitro immortalized lymphoblastoid cell lines, None) , ( cell line: LCLs, None) , ( DNA: EBNA gene promoters, None) , ( DNA: promoters, None) , ( DNA: Cp, None) 