1621
The proto-oncogene c-fos is an immediate-early gene , and one of the first genes transcribed after stimulation of most cells with a variety of ligands.
 ( DNA: proto-oncogene c-fos, None) , ( DNA: immediate-early gene, 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: proto-oncogene c-fos, None) , ( DNA: immediate-early gene, None) 