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While a nuclear factor (s) from both peripheral blood monocytes and T cells binds the peri-kappa B site , electrophoretic mobility shift assays suggest that either a different protein binds to this site in monocytes versus T cells or that the protein recognizing this enhancer element undergoes differential modification in monocytes and T cells , thus supporting the transfection data.
 ( cell type: T cells, None) , ( cell type: monocytes, None) , ( cell type: T cells, None) , ( DNA: enhancer element, None) , ( cell type: monocytes, None) , ( protein: nuclear factor, None) , ( cell type: peripheral blood monocytes, None) , ( cell type: monocytes, None) , ( cell type: T cells, None) , ( DNA: peri-kappa B site, 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:
 ( cell type: T cells, None) , ( cell type: monocytes, None) , ( cell type: T cells, None) , ( DNA: enhancer element, None) , ( cell type: monocytes, None) , ( protein: nuclear factor, None) , ( cell type: peripheral blood monocytes, None) , ( cell type: monocytes, None) , ( cell type: T cells, None) , ( DNA: peri-kappa B site, None) 