4233
The sense sequence ( sequence III ) of the X gene also enhanced the expression of CD40 antigen in patients with hepatitis B .
 ( DNA: X gene, None) , ( protein: CD40, None) , ( protein: CD40 antigen, 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: X gene, None) , ( protein: CD40, None) , ( protein: CD40 antigen, None) 