3624
Impaired silencing of gamma-globin expression identifies EKLF as the first transcription factor participating quantitatively in the gamma-globin to beta-globin switch .
 ( protein: transcription factor, None) , ( protein: gamma-globin, None) , ( protein: beta-globin, None) , ( protein: gamma-globin, None) , ( protein: EKLF, 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: gamma-globin, None) , ( protein: beta-globin, None) , ( protein: gamma-globin, None) , ( protein: EKLF, None) 