10158
We have now characterized factors that bind to an enhancer region located between nucleotides -170 and -139 of the human IL-2Rbeta promoter .
 ( DNA: nucleotides -170 and -139, None) , ( protein: IL-2Rbeta, None) , ( DNA: IL-2Rbeta promoter, 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: nucleotides -170 and -139, None) , ( protein: IL-2Rbeta, None) , ( DNA: IL-2Rbeta promoter, None) 