12085
Using electrophoretic mobility shift analysis we demonstrated that the promoter region spanning base pairs -1 to -275 , which contains several putative binding sites for transcription factors , is bound by nuclear factors Sp1 and IRBP but not by C/EBPs .
 ( DNA: base pairs -1 to -275, None) , ( protein: IRBP, None) , ( protein: nuclear factors, None) , ( DNA: promoter region, None) , ( protein: C/EBPs, None) , ( protein: Sp1, None) , ( protein: transcription factors, 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: base pairs -1 to -275, None) , ( protein: IRBP, None) , ( protein: nuclear factors, None) , ( DNA: promoter region, None) , ( protein: C/EBPs, None) , ( protein: Sp1, None) , ( protein: transcription factors, None) 