10769
In vivo genomic DMS footprinting revealed upstream of the major transcription initiation sites , the presence of at least three protein binding sites , two of which were constitutively occupied.
 ( DNA: transcription initiation sites, None) , ( DNA: protein binding sites, 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: transcription initiation sites, None) , ( DNA: protein binding sites, None) 