709
PU.1 (the Spi-1 oncogene ) and Spi-B are closely related members of the ets transcription factor family , sharing similar DNA binding specificities mediated by similar DNA binding domains .
 ( protein: DNA binding domains, None) , ( protein: PU.1, None) , ( protein: ets transcription factor family, None) , ( protein: Spi-B, None) , ( DNA: Spi-1 oncogene, 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: DNA binding domains, None) , ( protein: PU.1, None) , ( protein: ets transcription factor family, None) , ( protein: Spi-B, None) , ( DNA: Spi-1 oncogene, None) 