7740
Type I interferons ( IFNs ) are a family of cytokines that have antiviral and antiproliferative effects .
 ( protein: interferons, None) , ( protein: IFNs, None) , ( protein: cytokines, 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: interferons, None) , ( protein: IFNs, None) , ( protein: cytokines, None) 