14742
Two sets of nested primers were designed to conserved sequences in the adenovirus E1A and hexon genes .
 ( protein: hexon, None) , ( DNA: nested primers, None) , ( protein: adenovirus E1A, 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:
 ( protein: hexon, None) , ( DNA: nested primers, None) , ( protein: adenovirus E1A, None) 