10166
Thus, Sp1 and Egr-1 physically and functionally cooperate to mediate maximal IL-2Rbeta promoter activity .
 ( protein: Egr-1, None) , ( DNA: IL-2Rbeta promoter, None) , ( protein: Sp1, 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: Egr-1, None) , ( DNA: IL-2Rbeta promoter, None) , ( protein: Sp1, None) 