10616
In DNA-protein binding studies , we detected the binding of transcription factors GABP alpha and -beta to a dyad symmetry element ( DSE ) of the distal enhancer , which is formed by palindromic binding sites of Ets-like factors .
 ( DNA: DSE, None) , ( protein: transcription factors, None) , ( DNA: dyad symmetry element, None) , ( DNA: palindromic binding sites, None) , ( protein: Ets-like factors, None) , ( DNA: distal enhancer, 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: DSE, None) , ( protein: transcription factors, None) , ( DNA: dyad symmetry element, None) , ( DNA: palindromic binding sites, None) , ( protein: Ets-like factors, None) , ( DNA: distal enhancer, None) 