1336
Positive and negative regulation of the composite octamer motif of the interleukin 2 enhancer by AP-1 , Oct-2 , and retinoic acid receptor .
 ( protein: AP-1, None) , ( DNA: interleukin 2 enhancer, None) , ( protein: retinoic acid receptor, None) , ( DNA: composite octamer motif, None) , ( protein: Oct-2, 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:
 ( protein: AP-1, None) , ( DNA: interleukin 2 enhancer, None) , ( protein: retinoic acid receptor, None) , ( DNA: composite octamer motif, None) , ( protein: Oct-2, None) 