9270
We suspect that the C/EBP epsilon promoter/enhancer contains a retinoic acid-response element that is directly stimulated by retinoids .
 ( DNA: C/EBP epsilon promoter/enhancer, None) , ( DNA: retinoic acid-response element, 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: C/EBP epsilon promoter/enhancer, None) , ( DNA: retinoic acid-response element, None) 