3240
Interferon regulatory factor 2 ( IRF-2 ) is a transcriptional regulatory protein that terminates interferon beta expression initiated by interferon regulatory factor 1 .
 ( protein: IRF-2, None) , ( protein: transcriptional regulatory protein, None) , ( protein: interferon regulatory factor 1, None) , ( protein: Interferon regulatory factor 2, None) , ( protein: interferon beta, 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: IRF-2, None) , ( protein: transcriptional regulatory protein, None) , ( protein: interferon regulatory factor 1, None) , ( protein: Interferon regulatory factor 2, None) , ( protein: interferon beta, None) 