9350
The third member of the family , A-myb , shows the most restricted pattern of expression, suggesting a very specific role for this transcription factor .
 ( protein: family, None) , ( protein: transcription factor, None) , ( protein: A-myb, 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: family, None) , ( protein: transcription factor, None) , ( protein: A-myb, None) 