3443
The expression of activated p21(ras) negatively regulated the induction of IE genes by calcium ionophore.
 ( DNA: IE genes, None) , ( protein: p21(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: IE genes, None) , ( protein: p21(ras), None) 