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Our results demonstrate that transcriptional regulation of the Fc gamma RIC gene by IFN-gamma involves the binding of STAT1 alpha to a 17-bp GAS homology in the proximal promoter .
 ( protein: IFN-gamma, None) , ( DNA: Fc gamma RIC gene, None) , ( DNA: 17-bp GAS homology, None) , ( DNA: proximal promoter, None) , ( protein: STAT1 alpha, 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: IFN-gamma, None) , ( DNA: Fc gamma RIC gene, None) , ( DNA: 17-bp GAS homology, None) , ( DNA: proximal promoter, None) , ( protein: STAT1 alpha, None) 