12924
Using reporter gene constructs driven by the CD4 promoter , we report that HHV-6 can efficiently transactivate such genetic elements .
 ( DNA: genetic elements, None) , ( DNA: reporter gene constructs, None) , ( DNA: CD4 promoter, 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: genetic elements, None) , ( DNA: reporter gene constructs, None) , ( DNA: CD4 promoter, None) 