9370
In vivo genomic footprinting had also revealed cell-specific binding of protein, presumably Sp1 , to these regions.
 ( protein: Sp1, 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: Sp1, None) 