11494
The regulation of human IL-1beta gene expression has been studied for several years, and a few regulatory elements have been discovered in the promoter region .
 ( DNA: regulatory elements, None) , ( DNA: promoter region, None) , ( protein: human IL-1beta, None) , ( protein: IL-1beta, 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: regulatory elements, None) , ( DNA: promoter region, None) , ( protein: human IL-1beta, None) , ( protein: IL-1beta, None) 