2013
Electrophoretic mobility shift analysis does not detect a direct interaction of the CD14 distal Sp1-binding site with the vitamin D3 receptor and its partner, the retinoid X receptor .
 ( protein: CD14, None) , ( DNA: Sp1-binding site, None) , ( protein: retinoid X receptor, None) , ( protein: vitamin D3 receptor, 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: CD14, None) , ( DNA: Sp1-binding site, None) , ( protein: retinoid X receptor, None) , ( protein: vitamin D3 receptor, None) 