464
Okadaic acid augments PMA- as well as calcium- mediated activation of c-fos , and has little or no effect when combined with cAMP .
 ( DNA: c-fos, 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: c-fos, None) 