3315
In vitro footprinting analysis within this part of the promoter revealed two Sp1 binding sites as well as a PU-box .
 ( DNA: Sp1 binding sites, None) , ( DNA: promoter, None) , ( DNA: PU-box, 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: Sp1 binding sites, None) , ( DNA: promoter, None) , ( DNA: PU-box, None) 