3053
In vitro mutagenesis experiments demonstrated that both the Ets and AP-1 sites are required for binding of the inducible PB1 nuclear protein complex and for the transcriptional activity of this element and the GM-CSF promoter in activated T cells .
 ( cell type: activated T cells, None) , ( DNA: GM-CSF promoter, None) , ( protein: PB1 nuclear protein complex, None) , ( DNA: PB1, None) , ( protein: GM-CSF, 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:
 ( cell type: activated T cells, None) , ( DNA: GM-CSF promoter, None) , ( protein: PB1 nuclear protein complex, None) , ( DNA: PB1, None) , ( protein: GM-CSF, None) 