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The transcriptional response of the IL-2R alpha gene to stimulation by IL-1 + IL-2 is biphasic.
 ( DNA: IL-2R alpha gene, None) , ( protein: IL-1, None) , ( protein: IL-2, 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: IL-2R alpha gene, None) , ( protein: IL-1, None) , ( protein: IL-2, None) 