4209
By using run-on assays , ACLA was shown to induce an enhancement of the transcription of erythroid genes , including gamma-globin , PBGD , erythropoietin receptor , and GATA-1 transcription factor .
 ( protein: transcription factor, None) , ( protein: erythropoietin receptor, None) , ( protein: PBGD, None) , ( DNA: erythroid genes, None) , ( protein: GATA-1, None) , ( protein: gamma-globin, 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: transcription factor, None) , ( protein: erythropoietin receptor, None) , ( protein: PBGD, None) , ( DNA: erythroid genes, None) , ( protein: GATA-1, None) , ( protein: gamma-globin, None) 