5386
To characterize the protein-DNA interactions important for the developmental control of the human beta-globin locus , we analyzed by in vivo dimethyl sulfate footprinting erythroid cells expressing either the fetal or the adult globin developmental program .
 ( DNA: human beta-globin locus, None) , ( cell type: erythroid cells, 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: human beta-globin locus, None) , ( cell type: erythroid cells, None) 