4817
Octamer binding factors and their coactivator can activate the murine PU.1 (spi-1) promoter .
 ( protein: coactivator, None) , ( protein: Octamer binding factors, None) , ( DNA: murine PU.1 (spi-1) promoter, 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: coactivator, None) , ( protein: Octamer binding factors, None) , ( DNA: murine PU.1 (spi-1) promoter, None) 