6122
Electrophoretic mobility shift assays ( EMSAs ) showed that recombinant C/EBPbeta protein could bind to the potential C/EBP-binding site ( bp -90 to -82 ) in the MBP promoter.
 ( protein: MBP, None) , ( DNA: C/EBP-binding site, None) , ( protein: C/EBPbeta, None) , ( DNA: bp -90 to -82, 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: MBP, None) , ( DNA: C/EBP-binding site, None) , ( protein: C/EBPbeta, None) , ( DNA: bp -90 to -82, None) 