12196
Previous reports have shown that BA -induced overexpression of erythroid genes occurred at the transcriptional level , suggesting the involvement of erythroid transcription factors .
 ( DNA: erythroid genes, None) , ( protein: erythroid transcription factors, None) , ( protein: transcription factors, 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: erythroid genes, None) , ( protein: erythroid transcription factors, None) , ( protein: transcription factors, None) 