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An interferon-gamma activation sequence mediates the transcriptional regulation of the IgG Fc receptor type IC gene by interferon-gamma .
 ( DNA: interferon-gamma activation sequence, None) , ( DNA: IgG Fc receptor type IC gene, None) , ( protein: IgG Fc receptor, None) , ( protein: interferon-gamma, 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:
 ( DNA: interferon-gamma activation sequence, None) , ( DNA: IgG Fc receptor type IC gene, None) , ( protein: IgG Fc receptor, None) , ( protein: interferon-gamma, None) 