3640
The murine E3 promoter harbors a single bipartite retinoic acid response element which in transient transfection assays conferred RA sensitivity .
 ( DNA: bipartite retinoic acid response element, None) , ( DNA: E3 promoter, None) , ( protein: E3, 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: bipartite retinoic acid response element, None) , ( DNA: E3 promoter, None) , ( protein: E3, None) 