49
Transient transfection experiments show that several elements in the promoter-proximal region of the IL-2R alpha gene contribute to IL-1 responsiveness, most importantly an NF-kappa B site conserved in the human and mouse gene .
 ( DNA: NF-kappa B site, None) , ( protein: NF-kappa B, None) , ( DNA: IL-2R alpha gene, None) , ( protein: IL-2R alpha, None) , ( protein: IL-1, None) , ( DNA: promoter-proximal region, 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: NF-kappa B site, None) , ( protein: NF-kappa B, None) , ( DNA: IL-2R alpha gene, None) , ( protein: IL-2R alpha, None) , ( protein: IL-1, None) , ( DNA: promoter-proximal region, None) 