12873
Hepatocytes achieve an efficient hormonal control of this promoter through a functional interaction between the estrogen responsive elements and a promoter proximal region upstream of the TATA box , which is characterized by a high density of binding sites for the transcription factors CTF/NF-1 , C/EBP and HNF3 .
 ( protein: transcription factors, None) , ( protein: C/EBP, None) , ( protein: HNF3, None) , ( protein: CTF/NF-1, None) , ( DNA: TATA box, None) , ( DNA: promoter proximal region, None) , ( DNA: estrogen responsive elements, 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: transcription factors, None) , ( protein: C/EBP, None) , ( protein: HNF3, None) , ( protein: CTF/NF-1, None) , ( DNA: TATA box, None) , ( DNA: promoter proximal region, None) , ( DNA: estrogen responsive elements, None) 