5175
These results suggest that a novel mechanism of gene regulation by "differential repression" is used by multiple members of repressor proteins with different repressive effects on the IFN-responsive genes .
 ( protein: repressor proteins, None) , ( DNA: IFN-responsive genes, 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: repressor proteins, None) , ( DNA: IFN-responsive genes, None) 