14224
Transcription of the human beta-globin gene cluster depends upon upstream regulatory sequences , which are collectively termed the locus control region .
 ( DNA: locus control region, None) , ( DNA: upstream regulatory sequences, None) , ( DNA: human beta-globin gene cluster, 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: locus control region, None) , ( DNA: upstream regulatory sequences, None) , ( DNA: human beta-globin gene cluster, None) 