9283
To characterize the role of these P -like elements and their binding factors in the native promoter , we did transient transfection and electrophoretic mobility shift assays ( EMSA ).
 ( DNA: P, None) , ( protein: binding factors, None) , ( DNA: P -like elements, None) , ( DNA: native promoter, 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: P, None) , ( protein: binding factors, None) , ( DNA: P -like elements, None) , ( DNA: native promoter, None) 