12102
We have previously shown that a 70-bp element is necessary and sufficient for the response of the CAEV LTR to this cytokine .
 ( DNA: CAEV LTR, None) , ( protein: cytokine, None) , ( DNA: 70-bp element, 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: CAEV LTR, None) , ( protein: cytokine, None) , ( DNA: 70-bp element, None) 