3839
The downstream regulatory region contains a cyclic AMP -responsive element ( CRE ).
 ( DNA: downstream regulatory region, None) , ( DNA: cyclic AMP -responsive element, None) , ( DNA: CRE, 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: downstream regulatory region, None) , ( DNA: cyclic AMP -responsive element, None) , ( DNA: CRE, None) 