8434
Here we show that the I alpha1 promoter contains several binding sites for the AML /PEBP2/CBF family of transcription factors and that AML and Ets proteins are major regulators of the basal and TGF-beta-inducible promoter activity .
 ( protein: AML /PEBP2/CBF family of transcription factors, None) , ( protein: transcription factors, None) , ( protein: AML, 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: AML /PEBP2/CBF family of transcription factors, None) , ( protein: transcription factors, None) , ( protein: AML, None) 