480
We found that expression of a constitutively active form of calcineurin could substitute for Ca2+ ionophore and synergize with PMA to activate the GM-CSF promoter , and conversely that mutant-activated Ras could substitute for PMA and cooperate with Ca2+ ionophore .
 ( DNA: GM-CSF promoter, None) , ( protein: calcineurin, None) , ( protein: GM-CSF, None) , ( protein: mutant-activated Ras, 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: GM-CSF promoter, None) , ( protein: calcineurin, None) , ( protein: GM-CSF, None) , ( protein: mutant-activated Ras, None) 