5018
We propose that growth inhibition of established B cell lymphoma lines is a novel function of EBNA2 which has not been detected in the absence of an inducible system .
 ( protein: EBNA2, None) , ( cell line: B cell lymphoma 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:
 ( protein: EBNA2, None) , ( cell line: B cell lymphoma lines, None) 