8388
Proteins involved in repression of the human beta-globin gene may be useful in the treatment of sickle cell anemia , in conjunction with therapy to reactivate fetal globin genes .
 ( DNA: fetal globin genes, None) , ( DNA: human beta-globin gene, 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: fetal globin genes, None) , ( DNA: human beta-globin gene, None) 