654
A series of hybrid DRA/DQB reporter constructs was generated to further map the relevant cis-elements in this system.
 ( DNA: hybrid DRA/DQB reporter constructs, None) , ( DNA: reporter constructs, None) , ( DNA: cis-elements, 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: hybrid DRA/DQB reporter constructs, None) , ( DNA: reporter constructs, None) , ( DNA: cis-elements, None) 