1310
We show that depletion of Sp1 ( A1 ) from nuclear extracts specifically decreases in vitro transcription activity on GM-CSF templates .
 ( protein: Sp1, None) , ( protein: GM-CSF, None) , ( protein: A1, 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) , ( protein: GM-CSF, None) , ( protein: A1, None) 