3265
Binding of the cDNA fusion protein , similarly to the results obtained with purified Jurkat protein, was decreased by introduction of site-specific mutations in the DRE 1 regulatory sequence .
 ( DNA: DRE 1, None) , ( protein: cDNA fusion protein, None) , ( DNA: DRE 1 regulatory sequence, 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: DRE 1, None) , ( protein: cDNA fusion protein, None) , ( DNA: DRE 1 regulatory sequence, None) 