12045
However, replication of EBV in vivo is controlled primarily by host immune mechanisms selecting for cells that are not permissive for viral replication as the result of a particular set of transcription factors .
 ( protein: transcription factors, 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: transcription factors, None) 