13820
Using deletion constructs , we have defined an active promoter region of 1056 bp.
 ( DNA: active promoter region, None) , ( DNA: deletion constructs, 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: active promoter region, None) , ( DNA: deletion constructs, None) 