9301
Quantitative experiments comparing binding of these transcription factors to the IL-2 promoter are currently under investigation.
 ( DNA: IL-2 promoter, None) , ( protein: transcription factors, 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-2 promoter, None) , ( protein: transcription factors, None) 