3596
In this paper we have investigated the role of Egr-1 in B cell growth regulation by examining the gene expression in a panel of B cell lines , including both EBV genome negative and EBV carrying cell lines .
 ( cell line: B cell lines, None) , ( DNA: EBV genome, None) , ( cell line: EBV carrying cell lines, None) , ( protein: Egr-1, 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: B cell lines, None) , ( DNA: EBV genome, None) , ( cell line: EBV carrying cell lines, None) , ( protein: Egr-1, None) 