7512
Both haemin and delta-ALA caused a de novo increase in alpha-globin expression as well as enhancing Epo -induced beta-globin expression , leading to a marked increase in haemoglobin production .
 ( protein: alpha-globin, None) , ( protein: beta-globin, None) , ( protein: Epo, 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: alpha-globin, None) , ( protein: beta-globin, None) , ( protein: Epo, None) 