13513
The BRLF1 product Rta functions as a transcriptional activator in both B lymphocytes and epithelial cells .
 ( DNA: BRLF1, None) , ( protein: BRLF1 product Rta, None) , ( cell type: B lymphocytes, None) , ( cell type: epithelial cells, None) , ( protein: Rta, 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: BRLF1, None) , ( protein: BRLF1 product Rta, None) , ( cell type: B lymphocytes, None) , ( cell type: epithelial cells, None) , ( protein: Rta, None) 